Resources

274 AI learning resources, 274 links hand-checked — official courses, docs, open-source projects and free tutorials.

Free Tutorial Beginner ★ Featured

Liao Xuefeng's Python Tutorial

廖雪峰 · AI Fundamentals

One of the most widely circulated Python beginner tutorials in the Chinese-speaking world, written in plain language and covering syntax, functions, OOP, and common standard libraries. It is completely free to read.

Free Chinese Details →
Official Course Beginner ★ Featured

AI for Everyone by Andrew Ng

DeepLearning.AI / Coursera · AI Fundamentals

Andrew Ng's AI literacy course for non-technical audiences, covering what AI can actually do, where its limits lie, and how to pick AI projects at work. Auditing is free.

Freemium English (Chinese subtitles) Details →
Free Tutorial Beginner ★ Featured

Kaggle Learn Micro-Courses

Kaggle · AI Fundamentals

Kaggle's official series of short courses with hands-on exercises in the browser, covering Python, Pandas, machine learning, deep learning, and feature engineering basics.

Free English Details →
Official Course Beginner ★ Featured

Google Machine Learning Crash Course (MLCC)

Google · Machine Learning

Google's machine learning crash course with videos, lectures, and interactive exercises, spanning linear regression to neural networks and representation learning.

Free English (community Chinese translation) Details →
Official Course Beginner ★ Featured

Hung-yi Lee's Machine Learning Course (NTU)

台湾大学 李宏毅 · Machine Learning

A Chinese-language machine learning course by NTU professor Hung-yi Lee, known for its humorous style and comprehensive coverage, updated every year. Full re-uploads are on Bilibili.

Free Chinese Details →
Open Source Project Beginner ★ Featured

Dive into Deep Learning (Chinese Edition)

李沐 等 · Deep Learning

An open-source deep learning textbook in Chinese, with runnable code, video lectures, and exercises, taking learners from zero to full project practice.

Free Chinese Details →
Official Docs Beginner ★ Featured

PyTorch Official Tutorials

PyTorch(Meta) · Deep Learning

PyTorch's complete official tutorials, from tensor basics to large-model training, with a Chinese version on the site plus a 60-minute quick start.

Free English (official Chinese version) Details →
Official Course Intermediate ★ Featured

Hugging Face NLP Course

Hugging Face · Large Language Models

Hugging Face's official course covering Transformer architectures, fine-tuning, and the Transformers ecosystem. Completely free and widely recommended.

Free English (community Chinese translation) Details →
Official Docs Intermediate ★ Featured

OpenAI API Official Docs

OpenAI · Large Language Models

OpenAI's official API documentation covering model capabilities, function calling, structured outputs, and best practices. The primary source for API-driven development.

Free English Details →
Official Docs Beginner ★ Featured

DeepSeek Open Platform Docs

DeepSeek · Large Language Models

DeepSeek's official API documentation: Chinese-friendly and inexpensive, a good fit for first API calls and reasoning-model experiments, with free credits for new users.

Free Chinese Details →
Free Tutorial Beginner ★ Featured

Prompt Engineering Guide (Chinese Edition)

DAIR.AI · Prompting & Apps

The most systematic open-source prompt engineering tutorial. The Chinese edition covers fundamental techniques, RAG, Agents, and adversarial safety.

Free Chinese Details →
Official Course Intermediate ★ Featured

Hugging Face Agents Course

Hugging Face · AI Agent Development

Hugging Face's official Agent course covering tool calling, RAG, reasoning agents, and hands-on work with smolagents. All free.

Free English Details →
Official Docs Intermediate ★ Featured

LangChain Official Docs

LangChain · AI Agent Development

Docs for the most popular LLM application framework, covering model I/O, chains, retrieval, memory, and Agents, with a huge ecosystem.

Free English Details →
Open Source Project Beginner ★ Featured

Dify Official Documentation

Dify · AI Agent Development

An open-source LLM app development platform with visual orchestration of RAG and Agents, one-click deployment, and friendly Chinese docs.

Free Chinese Details →
Tool & Platform Beginner ★ Featured

Coze

字节跳动 · AI Agent Platforms

ByteDance's no-code platform for building AI apps, with publishing to Feishu, WeChat, and other channels. New users get free credits.

Free Chinese Details →
Open Source Project Intermediate ★ Featured

Hugging Face Transformers

Hugging Face · Open Source & Tools

Official docs for the Transformers library, supporting inference, training, and fine-tuning of hundreds of pretrained models — the standard tool for working with models.

Free English Details →
Open Source Project Beginner ★ Featured

Ollama Local LLM Tool

Ollama · Deployment & Serving

Run open-source LLMs locally with a single command on Windows, macOS, or Linux — the go-to starting point for local deployment.

Free English Details →
Tool & Platform Beginner ★ Featured

Doubao

字节跳动 · AI Chat Assistants

ByteDance's AI assistant with natural Chinese conversation, voice calls, image understanding and AI coding. Completely free on web and app — the easiest starting point for Chinese users.

Free Chinese Details →
Tool & Platform Beginner ★ Featured

Kimi

月之暗面 · AI Chat Assistants

Moonshot's AI assistant, famous for its ultra-long context — ideal for reading long documents, papers and web pages. Free to use and one of the top picks for Chinese long-text work.

Free Chinese Details →
Tool & Platform Beginner ★ Featured

DeepSeek

幻方量化 · AI Chat Assistants

High-Fly Quant's reasoning model with standout math and coding ability. Free on web and app, open-weight, and cheap API pricing — a crowd favorite among Chinese models.

Free Chinese Details →
Tool & Platform Beginner ★ Featured

Kling AI

快手 · AI Video Generators

Kuaishou's video generation model — coherent character motion and cinematic camera moves are its strengths. Supports text-to-video, image-to-video and lip sync. Free daily credits; exports carry a watermark.

Freemium Chinese Details →
Tool & Platform Beginner ★ Featured

Hailuo AI

MiniMax · AI Video Generators

MiniMax's video tool — fast generation, short queues, delicate facial micro-expressions. Free daily quota on the free tier; exports carry a watermark.

Freemium Chinese Details →
Tool & Platform Beginner ★ Featured

Jimeng AI

字节跳动 · AI Video Generators

ByteDance's all-in-one AI creation platform — strong at both video and image, with good Chinese semantics, built-in storyboard templates and a music library, tied into the CapCut ecosystem. Free daily credits; watermarked.

Freemium Chinese Details →
Tool & Platform Beginner ★ Featured

Tongyi Wanxiang

阿里巴巴 · AI Image & Design

Alibaba's image and video platform — Chinese long-text and poster text rendering is its signature. Generous daily free quota; free version is watermarked.

Free Chinese Details →
Tool & Platform Beginner ★ Featured

Suno

Suno · AI Audio & Music

The most popular AI music tool — full songs with vocals from one sentence, across many styles. Free tier: ~10 songs/day, non-commercial, limited downloads.

Freemium English Details →
Tool & Platform Beginner ★ Featured

NotebookLM

Google · AI Learning & Research

Google's AI note and research tool — upload PDFs, web pages and videos to ask questions, generate summaries, flashcards and podcasts, with cited answers. Generous free tier; our most recommended study aid.

Free English Details →
Free Tutorial Beginner

Runoob Python 3 Tutorial

菜鸟教程 · AI Fundamentals

A quick-reference Python tutorial in Chinese with concise explanations and plenty of examples, handy to keep around as a desk reference.

Free Chinese Details →
Free Tutorial Beginner

Mofan's Python Tutorial for Beginners

莫烦 · AI Fundamentals

Free beginner-friendly Python and machine learning tutorials, rich in illustrations and driven by examples, explained in an intuitive style.

Free Chinese Details →
Official Course Intermediate

Deep Learning Specialization

DeepLearning.AI / Coursera · Deep Learning

A five-course series taught by Andrew Ng, running from neural network basics to CNNs, RNNs, and sequence models. Audit for free; certificates require a subscription.

Freemium English (Chinese subtitles) Details →
Free Tutorial Beginner

Elements of AI

赫尔辛基大学 & Reaktor · AI Fundamentals

A free AI literacy course from Finland with no programming prerequisites, covering the history, principles, ethics, and philosophy of AI. A Chinese version is available.

Free Multilingual (incl. Chinese) Details →
Free Tutorial Intermediate

fast.ai Practical Deep Learning for Coders

fast.ai · Deep Learning

The famous top-down deep learning course: get projects running first, then learn the theory. Ships with the fastai library and full video lectures, all free.

Free English (community Chinese subs) Details →
Free Tutorial Beginner

3Blue1Brown Neural Networks Series

Grant Sanderson · AI Fundamentals

Beautiful animations make gradient descent, backpropagation, and the core principles of neural networks intuitive. Officially licensed Chinese-subtitled versions are on Bilibili.

Free English (Chinese subs on Bilibili) Details →
Free Tutorial Intermediate

Andrej Karpathy's Neural Networks: Zero to Hero

Andrej Karpathy · Deep Learning

A video series by former OpenAI founding member Andrej Karpathy: build backpropagation, character-level language models, and miniGPT from scratch. Hardcore but hugely popular.

Free English (Chinese subs on Bilibili) Details →
Official Course Beginner

Baidu PaddlePaddle AI Studio

百度 · AI Fundamentals

Baidu's official PaddlePaddle AI learning and training platform, offering free courses, online Notebooks, and free GPU compute, with fast access from within China.

Free Chinese Details →
Community Intermediate

Alibaba Cloud Tianchi

阿里云 · Community & News

Alibaba Cloud's data science competition and learning community, offering datasets, contests, beginner tutorials, and compute support.

Free Chinese Details →
Official Course Intermediate

Stanford CS229 Machine Learning

斯坦福大学 · Machine Learning

Stanford's classic machine learning course, taught for years by Andrew Ng, covering supervised and unsupervised learning with theory. All lecture notes and videos are public.

Free English Details →
Official Docs Beginner

scikit-learn User Guide

scikit-learn 社区 · Machine Learning

The official user guide for the classic machine learning library, with clear algorithm explanations and complete examples. The best docs for learning traditional ML.

Free English Details →
Official Docs Beginner

TensorFlow Official Tutorials

Google · Deep Learning

Official TensorFlow tutorials covering a quick Keras start plus full-scenario examples for vision, text, and generative AI.

Free English Details →
Open Source Project Intermediate

Hands-On Machine Learning (3rd Edition) Companion Code

Aurélien Géron · Machine Learning

The open-source code repository for the classic ML textbook, covering full workflows with Scikit-Learn, Keras, and TensorFlow. Best used alongside the book.

Free English (popular Chinese translation) Details →
Official Course Intermediate

Hugging Face LLM Course

Hugging Face · Large Language Models

A systematic walkthrough of LLM architecture, tokenization, pretraining, alignment, and inference optimization, with runnable experiments. All free.

Free English Details →
Official Docs Beginner

OpenAI Prompt Engineering Guide

OpenAI · Prompting & Apps

OpenAI's official prompt engineering guide, distilling six core strategies with plenty of positive and negative examples. Short and sharp.

Free English Details →
Official Docs Intermediate

OpenAI Cookbook

OpenAI · Large Language Models

OpenAI's official collection of runnable examples for common scenarios such as RAG, Agents, and function calling. Learn by copying.

Free English Details →
Official Docs Intermediate

Anthropic Claude Official Docs

Anthropic · Large Language Models

Official Claude API documentation covering the Messages API, tool use, MCP, and prompt engineering. Exceptionally well written.

Free English Details →
Official Docs Intermediate

Google AI for Developers (Gemini)

Google · Large Language Models

Official Gemini API docs and tutorials, including free tiers, multimodal capabilities, and a getting-started guide for Vertex AI.

Free English Details →
Official Docs Intermediate

Alibaba Cloud Model Studio (Qwen API)

阿里云 · Large Language Models

Docs for Alibaba Cloud's Model Studio platform, offering APIs for the full Qwen model family, application orchestration, and enterprise capabilities, with free credits for new users.

Free Chinese Details →
Official Docs Intermediate

Zhipu AI Open Platform

智谱 AI · Large Language Models

Zhipu's official open platform, with API docs for GLM-4 and related models plus knowledge base and Agent capabilities. Free credits for new users.

Free Chinese Details →
Official Docs Intermediate

Moonshot AI Kimi Open Platform

月之暗面 · Large Language Models

Kimi's official API platform, built around ultra-long context. The docs are concise and quick to get through, with free credits for new users.

Free Chinese Details →
Official Docs Intermediate

Volcano Engine Ark (Doubao Models)

字节跳动 · Large Language Models

Docs for ByteDance's Volcano Engine LLM platform, offering the Doubao model family and model-as-a-service capabilities, with free credits for new users.

Free Chinese Details →
Official Docs Intermediate

Baidu AI Cloud Qianfan LLM Platform

百度 · Large Language Models

Docs for Baidu's Qianfan platform, covering ERNIE-series model APIs, fine-tuning, and the full app development workflow.

Free Chinese Details →
Official Docs Intermediate

MiniMax Open Platform

MiniMax · Large Language Models

MiniMax's official API platform, offering abab-series text models and speech synthesis, with thorough documentation.

Free Chinese Details →
Official Docs Intermediate

Tencent Hunyuan LLM

腾讯云 · Large Language Models

Tencent Hunyuan's official product page and docs hub, with API access to the hunyuan model series and industry solutions.

Free Chinese Details →
Tool & Platform Intermediate

SiliconFlow

硅基流动 · Large Language Models

A China-based LLM API aggregation platform: one key to call dozens of popular open-source models, with free credits for new users.

Free Chinese Details →
Free Tutorial Beginner

Learn Prompting

Sander Schulhoff 等 · Prompting & Apps

A veteran prompt engineering learning site, now grown into a course platform with free and paid courses on prompt engineering, AI safety, and more. A classic starting point.

Freemium English Details →
Community Intermediate

Hugging Face Daily Papers

Hugging Face · Community & News

Hugging Face's daily picks from ArXiv, with community upvotes and discussions. A lightweight way to track the frontier.

Free English Details →
Free Tutorial Advanced

Lil'Log Tech Blog

Lilian Weng · Large Language Models

The tech blog of OpenAI's former safety lead, with classic long reads on LLMs, Agents, and RLHF. Worth rereading.

Free English Details →
Free Tutorial Beginner

Jay Alammar's Illustrated AI

Jay Alammar · Large Language Models

Visual, illustration-driven explanations of Transformers, BERT, GPT, and diffusion models. Many people's go-to intro classic.

Free English Details →
Community Intermediate

Papers with Code

Papers with Code · Community & News

An academic community that pairs papers with code, where you can browse SOTA methods and open-source implementations by task.

Free English Details →
Official Docs Advanced

LangGraph Official Docs

LangChain · AI Agent Development

LangChain's framework for orchestrating stateful Agents, supporting cycles, human-in-the-loop, persistence, and debugging.

Free English Details →
Official Docs Intermediate

LlamaIndex Official Docs

LlamaIndex · AI Agent Development

A data framework for RAG development, covering retrieval, indexing, query engines, and Agents, with rich documentation examples.

Free English Details →
Open Source Project Beginner

FastGPT Official Documentation

FastGPT · AI Agent Development

An open-source knowledge base Q&A system with out-of-the-box visual RAG orchestration, APIs, and Docker deployment.

Free Chinese Details →
Open Source Project Advanced

Microsoft AutoGen

Microsoft · AI Agent Development

Microsoft's open-source multi-agent conversation framework, supporting multi-agent collaboration, code execution, and human-in-the-loop workflows.

Free English Details →
Open Source Project Advanced

MetaGPT Official Documentation

MetaGPT · AI Agent Development

A multi-agent framework that assigns SOPs to different agent roles so they can collaborate on complex tasks.

Free English Details →
Open Source Project Beginner

n8n Official Documentation

n8n · AI Agent Development

An open-source workflow automation platform with built-in AI nodes, hundreds of app integrations, and self-hosting support.

Free English Details →
Official Course Beginner

DeepLearning.AI Short Courses

DeepLearning.AI · AI Agent Development

One-hour short courses from Andrew Ng's team, covering hot topics like Agents, RAG, and prompt engineering — all free.

Free English (partial Chinese subs) Details →
Open Source Project Intermediate

ComfyUI Official Documentation

ComfyUI · Multimodal & AIGC

A node-based Stable Diffusion workflow tool; the docs cover installation, workflow examples, and custom node development.

Free English Details →
Official Docs Intermediate

Hugging Face Diffusers

Hugging Face · Multimodal & AIGC

Documentation for Hugging Face's diffusion model library, covering Stable Diffusion, ControlNet, and video generation, with runnable code.

Free English Details →
Open Source Project Beginner

Ultralytics YOLO Documentation

Ultralytics · Multimodal & AIGC

Official docs for the YOLO object detection framework — training, validation, deployment, and tracking in one place, with a fast learning curve.

Free English Details →
Open Source Project Intermediate

OpenAI Whisper Speech Recognition

OpenAI · Multimodal & AIGC

An open-source general-purpose speech recognition model supporting multilingual transcription and translation, runnable locally with a single command.

Free English Details →
Official Docs Beginner

Midjourney Official Documentation

Midjourney · Multimodal & AIGC

Official docs covering prompts, parameters, style references, and the web editor. A subscription is required.

Paid English Details →
Official Docs Beginner

Alibaba Tongyi Wanxiang

阿里云 · Multimodal & AIGC

Official help docs for Tongyi Wanxiang, covering text-to-image, style transfer, and API usage. New users get free credits.

Free Chinese Details →
Open Source Project Advanced

vLLM Official Documentation

vLLM 社区 · Deployment & Serving

A high-performance LLM inference and serving engine; PagedAttention dramatically boosts throughput, with support for mainstream open-source models.

Free English Details →
Open Source Project Intermediate

LLaMA-Factory Fine-Tuning Framework

hiyouga 等 · Open Source & Tools

A one-stop LLM fine-tuning framework supporting LoRA and full fine-tuning of mainstream open-source models, with friendly Chinese docs and a quick start.

Free Chinese (README) Details →
Open Source Project Intermediate

RAGFlow Knowledge Engine

infiniflow · Open Source & Tools

A RAG engine built on deep document understanding, offering out-of-the-box knowledge-base Q&A and parsing of complex document formats.

Free English Details →
Open Source Project Beginner

Open WebUI

Open WebUI · Deployment & Serving

A self-hosted AI chat interface that supports Ollama and OpenAI-compatible APIs, and can be deployed offline on an intranet.

Free English Details →
Open Source Project Intermediate

Alibaba Qwen Open-Source Models

阿里云 · Open Source & Tools

The Qwen series open-source model repository, covering everything from 0.5B to 110B+ parameters plus multimodal variants, with an active ecosystem.

Free Chinese (README) Details →
Official Docs Intermediate

Baidu PaddlePaddle Documentation

百度 · Open Source & Tools

China's first open-source deep learning framework, with comprehensive Chinese docs and industry case studies, and support for domestic hardware.

Free Chinese Details →
Official Docs Intermediate

Huawei MindSpore Official Tutorials

华为 · Open Source & Tools

Huawei's open-source deep learning framework with thorough docs and tutorials, tuned for Ascend hardware and domestic tech stacks.

Free Chinese Details →
Community Beginner

Datawhale Open-Source Learning Community

Datawhale · Community & News

A well-known Chinese open-source learning community offering team-based learning, open-source tutorials, and competition coaching in a friendly atmosphere.

Free Chinese Details →
Community Beginner

Heywhale Community

和鲸科技 · Community & News

An online data science practice community with Notebook environments, datasets, and courses — practice without installing anything.

Free Chinese Details →
Tool & Platform Beginner

OpenBayes Compute and Learning Platform

OpenBayes · Community & News

A Chinese GPU compute rental and learning platform with container environments and datasets. Students and beginners get free credits.

Free Chinese Details →
Official Docs Beginner

Official Python Tutorial

Python Software Foundation · AI Fundamentals

The official beginner tutorial from the Python team, covering syntax, data structures, modules, and error handling — the authoritative source for language details.

Free English Details →
Free Tutorial Beginner

Real Python Tutorials

Real Python · AI Fundamentals

A Python learning site known for clear step-by-step tutorials, with high-quality articles on web development, data, and automation. Some advanced content requires a subscription.

Freemium English Details →
Free Tutorial Beginner

3Blue1Brown: Essence of Linear Algebra

3Blue1Brown · AI Fundamentals

Animated, intuitive explanations of vectors, matrices, and eigenvalues, widely regarded as the best material for building linear algebra intuition. Chinese-dubbed versions circulate in the community.

Free English Details →
Free Tutorial Beginner

3Blue1Brown: Essence of Calculus

3Blue1Brown · AI Fundamentals

Visual explanations of the core ideas behind derivatives, integrals, and series — a fast way to rebuild math intuition as a foundation for understanding model training.

Free English Details →
Free Textbook Intermediate

Immersive Linear Algebra

J. Ström 等 · AI Fundamentals

An interactive online linear algebra textbook with plenty of dynamic figures and an emphasis on geometric intuition, free to read online.

Free English Details →
Free Tutorial Beginner

StatQuest Statistics Fundamentals

Josh Starmer · AI Fundamentals

Short, clear animated videos explaining statistics and machine learning concepts at a friendly pace — a lifesaver for many beginners.

Free English Details →
Official Course Beginner

Andrew Ng's Machine Learning Specialization

DeepLearning.AI · Machine Learning

Andrew Ng's classic machine learning specialization on Coursera, with a long-standing reputation, covering regression, classification, and clustering. Free to audit.

Freemium English Details →
Free Textbook Advanced

Probabilistic Machine Learning Online Book

Kevin Murphy · Machine Learning

Kevin Murphy's authoritative two-volume work, with a free online reading version covering probabilistic machine learning from fundamentals to the frontier.

Free English Details →
Tool & Platform Intermediate

OpenML Open Machine Learning Platform

OpenML · Machine Learning

An open scientific data platform pooling vast datasets, experiment pipelines, and results, making it easy to reproduce papers and compare model performance.

Free English Details →
Official Docs Intermediate

JAX Official Documentation

Google · Deep Learning

Documentation for Google's accelerated numerical computing library, supporting automatic differentiation and GPU/TPU compilation — a popular choice for research and high-performance experiments.

Free English Details →
Official Docs Beginner

Keras Official Documentation

Keras 团队 · Deep Learning

Official docs for the deep learning framework known for its friendly API, with step-by-step tutorials that get you building your first model fast.

Free English Details →
Official Docs Intermediate

PyTorch Lightning Official GitHub Repository

Lightning AI · Deep Learning

A lightweight training framework that wraps engineering details on top of PyTorch, helping you write cleaner, reusable training code. Note: in October 2026 the Lightning platform suspended service after a security incident, so official docs are temporarily unavailable — for now, source code and examples are available via the GitHub repository.

Free English Details →
Free Textbook Beginner

Dive into Deep Learning (English Edition)

D2L 社区 · Deep Learning

A deep learning textbook maintained by the global open-source community, combining explanations, code, and exercises — the same source as the Chinese edition.

Free English Details →
Official Docs Intermediate

Mistral AI Official Documentation

Mistral AI · Large Language Models

Official API and model documentation from Mistral AI, covering everything from chat completions to function calling.

Free English Details →
Paper Intermediate

The "Attention Is All You Need" Paper

Vaswani 等 · Large Language Models

The foundational paper of the Transformer architecture and the root of all large models; best read section by section alongside visual guides.

Free English Details →
Paper Intermediate

The BERT Paper

Devlin 等 · Large Language Models

The classic paper that introduced bidirectional pretraining, establishing the pretrain-then-finetune paradigm in NLP.

Free English Details →
Official Docs Beginner

Anthropic Prompt Engineering Guide

Anthropic · Prompting & Apps

Anthropic's official guide to prompt engineering, moving from clear instructions to chain of thought; the techniques transfer to other models.

Free English Details →
Open Source Project Beginner

Awesome ChatGPT Prompts

GitHub 社区 · Prompting & Apps

One of the most widely shared prompt collections on GitHub, with ready-made templates for writing, coding, learning, and more.

Free English Details →
Free Tutorial Intermediate

Brex Prompt Engineering Guide

Brex · Prompting & Apps

A prompt engineering handbook from the Brex team, distilling battle-tested techniques and anti-patterns from production.

Free English Details →
Official Docs Beginner

GitHub Copilot Documentation

GitHub · AI-Assisted Coding

Official GitHub docs for Copilot, covering installation, prompting tips, and setup across editors.

Free English Details →
Tool & Platform Beginner

Cursor AI Code Editor

Anysphere · AI Coding Tools

A code editor built around deep AI integration, with codebase Q&A and multi-file editing; free tier available.

Freemium English Details →
Open Source Project Intermediate

Cline Open-Source AI Coding Assistant

Cline · AI-Assisted Coding

An open-source autonomous coding assistant for VS Code that reads and writes files and runs commands with your own API key.

Free English Details →
Open Source Project Intermediate

Aider Command-Line AI Coding Tool

Aider · AI-Assisted Coding

An open-source tool for pair programming with AI from the terminal, with automatic Git commits — great for scripted codebase refactors.

Free English Details →
Open Source Project Intermediate

Continue Open-Source Coding Assistant

Continue · AI-Assisted Coding

An open-source AI coding extension for VS Code and JetBrains that connects to any local or cloud model, keeping you in control of privacy.

Free English Details →
Open Source Project Intermediate

Tabby Self-Hosted Coding Assistant

Tabby · AI-Assisted Coding

A self-hosted code completion and Q&A service that works with many editors — ideal for teams that require code to stay on-prem.

Free English Details →
Tool & Platform Beginner

CodeGeeX Code Assistant

智谱 AI · AI-Assisted Coding

A code generation and completion tool from Zhipu AI with friendly Chinese interaction, supporting mainstream IDEs.

Freemium Chinese Details →
Tool & Platform Beginner

Tongyi Lingma

阿里云 · AI Coding Tools

An AI coding assistant from Alibaba Cloud powered by the Tongyi models, free for individual use and compatible with mainstream IDEs.

Free Chinese Details →
Open Source Project Advanced

OpenHands Open-Source Coding Agent

All Hands AI · AI-Assisted Coding

Formerly OpenDevin, an open-source autonomous software development agent that edits code, runs commands, and browses the web to complete tasks.

Free English Details →
Official Docs Intermediate

Claude Code Documentation

Anthropic · AI-Assisted Coding

Official docs for Anthropic's terminal coding agent, covering installation, common commands, and workflow setup.

Freemium English Details →
Tool & Platform Beginner

Windsurf AI Editor

Codeium · AI Coding Tools

An agentic IDE from the Codeium team built around the Cascade flow-based collaboration experience; free tier available.

Freemium English Details →
Official Docs Intermediate

Microsoft Semantic Kernel

Microsoft · AI Agent Development

Microsoft's open-source SDK that combines LLMs with plugins, planners, and memory; a common choice for enterprise integration.

Free English Details →
Official Docs Intermediate

OpenAI Agents SDK Documentation

OpenAI · AI Agent Development

Docs for OpenAI's official agent framework, with built-in tool calling, handoffs, and tracing.

Free English Details →
Open Source Project Intermediate

PydanticAI Framework Documentation

Pydantic · AI Agent Development

An agent framework built around Pydantic's type validation — reliable code, test-friendly, and carrying FastAPI's design DNA.

Free English Details →
Open Source Project Intermediate

Hugging Face smolagents

Hugging Face · AI Agent Development

A minimalist agent library from Hugging Face with a clean, readable core — great for learning how agents actually work.

Free English Details →
Official Docs Intermediate

Google Agent Development Kit

Google · AI Agent Development

Google's official agent development kit, supporting multi-agent orchestration and tool integration, and compatible with open models.

Free English Details →
Open Source Project Advanced

DSPy Programming Framework Documentation

Stanford NLP · AI Agent Development

A declarative LLM programming framework from Stanford that treats prompts as optimizable parameters, for systematic performance gains.

Free English Details →
Open Source Project Intermediate

Awesome Agentic AI

Titan Codes · AI Agent Development

A constantly updated collection of agent tools and resources, covering frameworks, evaluation, and multi-agent systems.

Free English Details →
Official Docs Beginner

CrewAI Documentation

CrewAI · AI Agent Development

A multi-agent framework built around role-based collaboration, quick to pick up with an active community — well suited to business automation.

Freemium English Details →
Free Tutorial Advanced

OWASP Top 10 for LLM Applications

OWASP · AI Agent Development

The OWASP Foundation's security checklist for LLM applications — the standard reference for risks like prompt injection and data leakage.

Free English Details →
Official Docs Intermediate

MCP Protocol Specification

Anthropic · MCP Protocol

The official MCP specification, defining the standard for hosts, clients, servers, and tool/resource exchange.

Free English Details →
Open Source Project Intermediate

MCP Servers Reference Repository

MCP 社区 · MCP Protocol

An official collection of MCP servers — filesystem, database, browser, and more, ready to use out of the box.

Free English Details →
Open Source Project Intermediate

MCP Python SDK

MCP 社区 · MCP Protocol

The official MCP Python SDK, with server and client implementations — the starting point for building custom servers.

Free English Details →
Open Source Project Intermediate

MCP TypeScript SDK

MCP 社区 · MCP Protocol

The official MCP TypeScript SDK, for building MCP servers in the Node ecosystem.

Free English Details →
Open Source Project Intermediate

Awesome MCP Servers

punkpeye · MCP Protocol

A community-maintained directory of MCP servers, indexed by category across production-grade and experimental options.

Free English Details →
Free Tutorial Beginner

Anthropic's MCP Announcement

Anthropic · MCP Protocol

The announcement post introducing MCP, explaining the motivation behind it and its goal of a unified interface for AI apps.

Free English Details →
Official Course Beginner

Hugging Face MCP Course

Hugging Face · MCP Protocol

A beginner-friendly MCP course from Hugging Face, taking you from concepts to building your first MCP server.

Free English Details →
Free Tutorial Intermediate

Pinecone Learn

Pinecone · RAG & Retrieval

A free learning hub from a vector database vendor, with high-quality articles on RAG, embeddings, and hybrid search.

Free English Details →
Free Tutorial Beginner

Pinecone RAG Introductory Article

Pinecone · RAG & Retrieval

An illustrated overview of RAG that clearly explains the motivation, pipeline, and common pitfalls of retrieval-augmented generation.

Free English Details →
Official Docs Intermediate

LangChain RAG Tutorial

LangChain · RAG & Retrieval

LangChain's official RAG tutorial, with complete runnable code from document splitting to retrieval-based Q&A.

Free English Details →
Open Source Project Beginner

Chroma Vector Database Documentation

Chroma · RAG & Retrieval

An open-source vector database known for its simplicity — a few lines of code to embed in your app, ideal for local and small projects.

Free English Details →
Open Source Project Intermediate

Qdrant Documentation

Qdrant · RAG & Retrieval

A high-performance vector database written in Rust, with filtering, quantization, and distributed deployment; thorough docs.

Free English Details →
Open Source Project Intermediate

pgvector Vector Search Extension

pgvector · RAG & Retrieval

A vector similarity extension for PostgreSQL that adds embeddings search to a standard database, with minimal ops overhead.

Free English Details →
Open Source Project Advanced

FAISS Similarity Search Library

Meta AI · RAG & Retrieval

An open-source vector search library from Meta that stays fast at billion scale — a standard tool in algorithm research.

Free English Details →
Open Source Project Intermediate

Sentence Transformers Official Site

UKPLab · RAG & Retrieval

The most popular sentence embeddings library, with hundreds of pretrained models and tasks like similarity computation and reranking.

Free English Details →
Tool & Platform Intermediate

MTEB Embedding Model Leaderboard

Hugging Face · RAG & Retrieval

A large-scale leaderboard for text embedding models, comparing performance across tasks and languages — a must-check when selecting a model.

Free English Details →
Open Source Project Advanced

Microsoft GraphRAG

Microsoft · RAG & Retrieval

Microsoft's open-source graph-based RAG approach that extracts a knowledge graph from documents and excels at questions requiring a global view.

Free English Details →
Paper Advanced

RAG Survey Paper

Gao 等 · RAG & Retrieval

A fairly comprehensive RAG survey covering the paradigms and evaluation methods of naive, advanced, and modular RAG.

Free English Details →
Tool & Platform Beginner

LM Studio Local Model Tool

LM Studio · Deployment & Serving

A GUI tool for running LLMs locally, with one-click model downloads and local chat — beginner friendly.

Free English Details →
Open Source Project Advanced

llama.cpp Inference Engine

ggerganov · Deployment & Serving

A pure C/C++ inference engine that runs LLMs even on CPU — one of the de facto standards for local deployment.

Free English Details →
Open Source Project Advanced

Hugging Face Text Generation Inference

Hugging Face · Deployment & Serving

Hugging Face's official inference serving framework with continuous batching and tensor parallelism, built for API-style deployment.

Free English Details →
Official Docs Beginner

Gradio Official Documentation

Gradio · Deployment & Serving

A Python library for ML demo interfaces — wrap a model into a shareable web app in a few lines.

Free English Details →
Official Docs Beginner

Streamlit Official Documentation

Streamlit · Deployment & Serving

A pure-Python framework for interactive web apps — a popular pick for AI prototypes and internal tools.

Free English Details →
Open Source Project Intermediate

MLflow Official Documentation

MLflow · Deployment & Serving

An open-source MLOps platform covering the full lifecycle: experiment tracking, model registry, and deployment management.

Free English Details →
Free Tutorial Intermediate

Made With ML Course

Goku Mohandas · Deployment & Serving

A production-oriented ML course covering the full engineering loop: features, training, deployment, and monitoring.

Free English Details →
Official Course Intermediate

Full Stack Deep Learning

Full Stack Deep Learning · Deployment & Serving

A university-backed full-stack deep learning course spanning the whole engineering pipeline from data to deployment.

Free English Details →
Official Docs Intermediate

Weights & Biases Documentation

W&B · Deployment & Serving

Docs for the popular experiment tracking platform: log metrics, compare runs, and manage datasets, with a generous free tier for individuals.

Freemium English Details →
Open Source Project Intermediate

AI Engineer Roadmap Repository

dswh · Deployment & Serving

A three-stage learning roadmap repository from LLM API basics to LLMOps, with a long list of project ideas.

Free English Details →
Tool & Platform Intermediate

Kaggle Competitions

Kaggle · Hands-on Projects

A data science competition community with real datasets and leaderboards — a great arena to test your skills after the basics.

Free English Details →
Open Source Project Advanced

Build Your Own X

codecrafters · Hands-on Projects

A big collection of tutorials for building technologies from scratch — databases, editors, neural network engines, and other hardcore projects.

Free English Details →
Open Source Project Intermediate

Awesome LLM Apps

Shubham Saboo · Hands-on Projects

A collection of LLM projects organized by use case, with runnable examples for RAG, agent, and multimodal apps.

Free English Details →
Open Source Project Intermediate

gpt-engineer

gpt-engineer · Hands-on Projects

An open-source project that generates an entire codebase from a one-line prompt — an early landmark experiment in AI programming.

Free English Details →
Open Source Project Intermediate

LLM Fine-Tuning Datasets Collection

Maxime Labonne · Hands-on Projects

A curated collection of fine-tuning-ready datasets, organized by conversation, instruction, and preference types, with quality notes.

Free English Details →
Official Course Intermediate

Hugging Face Audio Course

Hugging Face · Multimodal & AIGC

Hugging Face's official audio course covering hands-on speech recognition, classification, and text-to-speech.

Free English Details →
Official Course Intermediate

Hugging Face Computer Vision Course

Hugging Face · Multimodal & AIGC

Hugging Face's official vision course, from image classification to detection and segmentation, with code that runs right in Spaces.

Free English Details →
Official Course Intermediate

Hugging Face Diffusion Models Course

Hugging Face · Multimodal & AIGC

A systematic course on diffusion models from theory to practice, with generation experiments using the Diffusers library.

Free English Details →
Open Source Project Advanced

Stable Diffusion Original Repository

CompVis · Multimodal & AIGC

The original Stable Diffusion research repo with model architecture and inference code — first-hand material for understanding diffusion generation.

Free English Details →
Open Source Project Intermediate

LangChain Open-Source Repository

LangChain · Open Source & Tools

The main LangChain repository source, for developers who want to dig into the framework's internals or contribute to the community.

Free English Details →
Open Source Project Beginner

GPT4All Local Model Ecosystem

Nomic AI · Open Source & Tools

A local LLM ecosystem that runs on consumer hardware, with a model marketplace and desktop app — privacy friendly.

Free English Details →
Open Source Project Beginner

Lobe Chat

LobeHub · Open Source & Tools

A modern open-source chat UI framework supporting multiple model providers and plugins, easy to deploy.

Freemium English Details →
Open Source Project Intermediate

LibreChat

LibreChat · Open Source & Tools

An all-in-one open-source chat platform that connects OpenAI, Anthropic, and local models, with multi-user support.

Free English Details →
Open Source Project Beginner

AnythingLLM

Mintplex Labs · Open Source & Tools

A local-first document Q&A app — upload files and start chatting; great for quickly testing RAG ideas.

Freemium English Details →
Newsletter Beginner

The Batch Weekly

DeepLearning.AI · Community & News

A weekly AI newsletter from Andrew Ng's team, explaining the week's important papers and product news in plain language.

Free English Details →
Newsletter Intermediate

Simon Willison's Blog

Simon Willison · Community & News

A veteran developer's personal blog, widely read for its prompt injection and engineering posts, with frequent updates.

Free English Details →
Newsletter Beginner

机器之心

机器之心 · Community & News

A veteran Chinese AI media outlet covering research progress, industry news, and interviews, with frequent updates.

Free Chinese Details →
Newsletter Beginner

量子位

量子位 · Community & News

A well-known Chinese AI media outlet with a light, readable style — good for quickly following China's AI scene.

Free Chinese Details →
Newsletter Intermediate

r/LocalLLaMA Community

Reddit · Community & News

Reddit's most active local LLM community, packed with first-hand info on quantization, deployment, and model benchmarks.

Free English Details →
Open Source Project Beginner

Awesome AI Resources

mohabdelkarim · Community & News

A free AI resource collection organized around learning roadmaps, with courses, books, and tools labeled by difficulty.

Free English Details →
Tool & Platform Beginner

ChatGPT

OpenAI · AI Chat Assistants

OpenAI's conversational product — the free tier is enough to try mainstream model capabilities, and it is most people's first stop with AI.

Freemium Multilingual (incl. Chinese) Details →
Tool & Platform Beginner

Claude

Anthropic · AI Chat Assistants

Anthropic's conversational product, well regarded for long context and coding; the free tier works for daily use.

Freemium Multilingual (incl. Chinese) Details →
Tool & Platform Beginner

Perplexity AI

Perplexity · AI Learning & Research

An AI-native search engine whose answers cite sources — handy for quickly verifying questions that come up while studying.

Freemium English Details →
Tool & Platform Intermediate

GroqCloud Console

Groq · Tools & API Platforms

Groq's inference cloud runs open models at extreme speed, with free credits on signup.

Freemium English Details →
Tool & Platform Beginner

Google AI Studio

Google · Tools & API Platforms

Google's model playground: call Gemini models and debug prompts right in the browser, with a friendly free tier.

Free English Details →
Tool & Platform Intermediate

OpenRouter

OpenRouter · Tools & API Platforms

A unified LLM API gateway — one key for hundreds of models, some of them free.

Freemium English Details →
Tool & Platform Intermediate

Together AI

Together · Tools & API Platforms

A cloud platform for serving open models, with serverless and dedicated endpoints plus trial credits on signup.

Freemium English Details →
Official Docs Intermediate

Cloudflare Workers AI

Cloudflare · Tools & API Platforms

Docs for running models on Cloudflare's edge, deeply integrated with the Workers ecosystem, with a free tier.

Freemium English Details →
Open Source Project Intermediate

LiteLLM Documentation

BerriAI · Tools & API Platforms

A proxy SDK that calls 100+ LLMs in the OpenAI format, with built-in retries, budgets, and logging.

Free English Details →
Open Source Project Intermediate

Instructor Structured Output Library

Jason Liu · Tools & API Platforms

A Pydantic-based structured output library with solid retry and validation — a great companion for function calling.

Free English Details →
Tool & Platform Beginner

Gemini

Google · AI Chat Assistants

Google's AI assistant, deeply integrated with Search, Gmail and Docs, with strong image and video understanding. The free tier covers mainstream models; deep research and other advanced features need a subscription.

Freemium Multilingual (incl. Chinese) Details →
Tool & Platform Beginner

Tencent Yuanbao

腾讯 · AI Chat Assistants

Tencent's AI assistant, powered by both DeepSeek and Hunyuan models, with WeChat article and PDF document parsing. Free to use.

Free Chinese Details →
Tool & Platform Beginner

Qwen (Tongyi Qianwen)

阿里巴巴 · AI Chat Assistants

Alibaba's AI assistant, backed by the Qwen series — the largest open model family in China. Handles long documents, images and code; free to use.

Free Chinese Details →
Tool & Platform Beginner

ERNIE Bot (Wenxin Yiyan)

百度 · AI Chat Assistants

Baidu's AI assistant built on the ERNIE models — solid at Chinese knowledge Q&A and copywriting, wired into Baidu Search and the Wenku ecosystem. Free to use.

Free Chinese Details →
Tool & Platform Beginner

ChatGLM (Zhipu Qingyan)

智谱 AI · AI Chat Assistants

Zhipu's chat product with open-weight GLM models; supports long text, code and data analysis. Free to use.

Free Chinese Details →
Tool & Platform Beginner

iFlytek Spark

科大讯飞 · AI Chat Assistants

iFlytek's AI assistant with broad education and office features and standout speech recognition and synthesis. Free to use.

Free Chinese Details →
Tool & Platform Beginner

Tiangong AI

昆仑万维 · AI Chat Assistants

Kunlun Wanwei's AI assistant, strong at search and long-document reading. Free to use.

Free Chinese Details →
Tool & Platform Beginner

Microsoft Copilot

微软 · AI Chat Assistants

Microsoft's AI assistant, deeply integrated with Bing, Edge and Office. The free tier covers basic GPT-series quota — zero cost to start.

Free Multilingual (incl. Chinese) Details →
Tool & Platform Beginner

Grok

xAI · AI Chat Assistants

xAI's chat assistant wired into real-time X data — fast on trending topics, with a limited free tier.

Freemium English Details →
Tool & Platform Beginner

Poe

Quora · AI Chat Assistants

Quora's multi-model aggregator: one account to try GPT, Claude, Gemini and other leading models, with free daily points.

Freemium Multilingual (incl. Chinese) Details →
Tool & Platform Beginner

Hunyuan Video

腾讯 · AI Video Generators

Tencent Hunyuan's video module — realistic detail and strong shot transitions, Chinese and English prompts supported. Free tier: 50 5-second 720P generations per month, watermarked.

Freemium Chinese Details →
Tool & Platform Beginner

Vidu

生数科技 · AI Video Generators

Shengshu Technology's video tool — excellent at anime and stylized output, with multi-shot generation. Free daily credits; watermarked.

Freemium Chinese Details →
Tool & Platform Beginner

PixVerse

爱诗科技 · AI Video Generators

AIshe Technology's video platform — rich templates and fun effects, multi-shot and native audio support. Free daily credits; watermarked.

Freemium Chinese Details →
Tool & Platform Beginner

Runway

Runway · AI Video Generators

The veteran AI video tool with a polished pro editing workflow — motion brush, camera controls and more. Free tier is one-time credits, watermarked; good for trying out.

Freemium English Details →
Tool & Platform Beginner

Pika

Pika Labs · AI Video Generators

Known for creative effects — crush, melt, inflate and other unique tricks, generated fast. Free tier has monthly credits and allows commercial use; quality ceiling is lower.

Freemium English Details →
Tool & Platform Beginner

Luma Dream Machine

Luma AI · AI Video Generators

A video tool with cinematic camera moves and strong physics — great for B-roll and atmospheric shots. Free tier has limited monthly generations.

Freemium English Details →
Tool & Platform Beginner

Google Flow

Google · AI Video Generators

Google's video creation tool powered by the Veo model — quality and prompt adherence at the top of the free tier. Free daily credits.

Freemium English Details →
Tool & Platform Beginner

Haiper

Haiper AI · AI Video Generators

A video tool with a generous free quota — good for quickly testing ideas and practicing prompts; quality and realism trail the leaders.

Free English Details →
Tool & Platform Beginner

Genmo

Genmo · AI Video Generators

A stylized animation and video tool with a distinct artistic look — good for creative experiments and concept design. Free tier has limited daily duration.

Freemium English Details →
Tool & Platform Beginner

CapCut (Jianying)

字节跳动 · AI Video Generators

ByteDance's video editor — AI subtitles, smart cutout and text-to-video all free and polished. The final editing stop of any AI video workflow, with the most tutorials around.

Free Chinese Details →
Tool & Platform Intermediate

Wan Video Model

阿里巴巴 · AI Video Generators

Alibaba's open video generation model — fully open weights and code, deployable locally, watermark-free and commercial-friendly. A great textbook for learning video generation.

Free Chinese Details →
Tool & Platform Intermediate

Stable Video Diffusion

Stability AI · AI Video Generators

Stability AI's open image-to-video model with a permissive license and rich community tutorials — good for local experiments and learning video generation details.

Free English Details →
Tool & Platform Beginner

LiblibAI

LiblibAI · AI Image & Design

China's largest Stable Diffusion model community — 100k+ models and LoRAs free to download, with online generation and training. Free tier includes daily compute credits.

Free Chinese Details →
Tool & Platform Beginner

Midjourney

Midjourney · AI Image & Design

The quality and aesthetics benchmark for image generation — no free tier, subscription only. Listed for comparison: study how top tools handle composition and light.

Paid English Details →
Tool & Platform Intermediate

Stable Diffusion

Stability AI · AI Image & Design

The synonym for open image generation — open weights, endless plugins and tutorials, deployable locally. The first choice for learning AI art principles.

Free English Details →
Tool & Platform Beginner

Leonardo.ai

Leonardo · AI Image & Design

A popular overseas AI art platform with daily free credits and a rich set of built-in models and styles — good for game art and concept design.

Freemium English Details →
Tool & Platform Beginner

Ideogram

Ideogram · AI Image & Design

Known for accurate text rendering in images — great for posters and logos. Free tier is daily-limited.

Freemium English Details →
Tool & Platform Beginner

Recraft

Recraft · AI Image & Design

A designer-oriented vector and illustration generator that outputs SVG with strong style consistency — good for brand visuals. Free tier has a daily quota.

Freemium English Details →
Tool & Platform Beginner

Meitu Design Studio

美图 · AI Image & Design

Meitu's AI design platform — product shots, posters and e-commerce templates, usable on the free tier, ready out of the box.

Free Chinese Details →
Tool & Platform Beginner

Gaoding AI

稿定 · AI Image & Design

Gaoding's AI design tool, tightly coupled with templates and marketing scenarios — full coverage of e-commerce and social assets. Free tier has quota.

Freemium Chinese Details →
Tool & Platform Beginner

WHEE

美图 · AI Image & Design

Meitu's AI image creation tool — text-to-image, editing and expansion, friendly to Chinese prompts. Free tier usable.

Free Chinese Details →
Tool & Platform Beginner

Canva China

Canva · AI Image & Design

The world's popular online design tool — AI image generation plus layout in one, and the free tier is enough for decks, posters and social graphics.

Freemium Chinese Details →
Tool & Platform Beginner

Civitai

Civitai · AI Image & Design

One of the largest open model sharing communities — tons of Checkpoints and LoRAs to download, plus an online generator. A must-bookmark for the SD ecosystem.

Free English Details →
Tool & Platform Beginner

SeaArt

SeaArt · AI Image & Design

A model-rich AI art community with daily free credits — similar in spirit to Liblib, good for trying different style models.

Freemium English Details →
Tool & Platform Beginner

insMind

insMind · AI Image & Design

A free AI image editing toolkit — cutout, eraser, upscale and background swap, all online with no install. Enough for everyday image tasks.

Free English Details →
Tool & Platform Beginner

GitHub Copilot

GitHub · AI Coding Tools

The most installed AI coding assistant, deeply integrated with VS Code. Free tier has limited monthly completions and chat; students and open-source maintainers can apply for free Pro.

Freemium English Details →
Tool & Platform Beginner

TRAE

字节跳动 · AI Coding Tools

ByteDance's AI IDE with friendly Chinese interaction, built-in multi-model switching, and a Builder mode that generates whole projects from a prompt. Free for individuals.

Free Chinese Details →
Tool & Platform Intermediate

Claude Code

Anthropic · AI Coding Tools

Anthropic's command-line coding agent — cross-file refactors, batch code changes and automation tasks from the terminal. Needs a subscription or API credits.

Freemium English Details →
Tool & Platform Intermediate

Codex

OpenAI · AI Coding Tools

OpenAI's coding agent — runs coding tasks in parallel in the cloud, tied to the ChatGPT subscription, good for batch tasks and code review.

Freemium English Details →
Tool & Platform Intermediate

Zed

Zed Industries · AI Coding Tools

An open, high-performance editor with unlimited free local AI completion and limited weekly remote model requests — the only free-tier AI editor that doesn't punish local development.

Free English Details →
Tool & Platform Intermediate

Qoder

阿里巴巴 · AI Coding Tools

Alibaba's agentic coding platform — Quest mode autonomously handles the full flow from requirements to code. Has a free quota.

Freemium Chinese Details →
Tool & Platform Intermediate

Kiro

AWS · AI Coding Tools

AWS's AI IDE with a spec-driven approach: generate design, tasks and runnable code from requirement docs. Free tier has quota.

Freemium English Details →
Tool & Platform Beginner

Bolt.new

StackBlitz · AI Coding Tools

Generate full-stack apps from one sentence in the browser, with instant preview and one-click deploy — great for validating product ideas fast. Free tier has limited daily tokens.

Freemium English Details →
Tool & Platform Beginner

Lovable

Lovable · AI Coding Tools

An AI site builder for non-developers — generate web apps conversationally and publish directly. Free tier is daily-limited.

Freemium English Details →
Tool & Platform Beginner

v0

Vercel · AI Coding Tools

Vercel's AI UI generator — high-quality React + Tailwind components, deployable directly. Free tier has limited monthly credits.

Freemium English Details →
Tool & Platform Beginner

AiPPT

AiPPT · AI Productivity

The veteran one-sentence PPT generator — rich templates and stable layout. Free tier can generate; HD export or watermark removal needs membership.

Freemium Chinese Details →
Tool & Platform Beginner

Gamma

Gamma · AI Productivity

A popular overseas AI presentation tool — beautiful web slides with built-in data charts. Free tier has credits; good for shareable online decks.

Freemium English Details →
Tool & Platform Beginner

Napkin

Napkin · AI Productivity

Turn text into infographics and flowcharts in one click — a huge efficiency win for reports and doc illustrations. Free tier usable.

Freemium English Details →
Tool & Platform Beginner

iFlytek Zhiwen

科大讯飞 · AI Productivity

iFlytek's AI document tool — long-form writing, PPT generation and rewriting in one place, with a friendly free quota.

Free Chinese Details →
Tool & Platform Beginner

WPS AI

金山办公 · AI Productivity

AI built into WPS — spreadsheet processing, document summaries and PPT generation, closest to Chinese office workflows. Free tier has quota.

Freemium Chinese Details →
Tool & Platform Beginner

Baidu Wenku AI Assistant

百度 · AI Productivity

Document library plus AI Q&A — find courseware, exam papers and industry docs fast, and let AI answer based on them. Free tier has quota.

Freemium Chinese Details →
Tool & Platform Beginner

ChatPPT

ChatPPT · AI Productivity

Conversational PPT generation and beautification — can smart-layout and unify style on existing decks. Free tier has limited runs.

Freemium Chinese Details →
Tool & Platform Beginner

iSlide AI

iSlide · AI Productivity

A PPT design plugin — AI unifies fonts, colors and layout in one click. Free tier covers the basics; a real PPT efficiency booster.

Freemium Chinese Details →
Tool & Platform Beginner

iFlytek Tingjian

科大讯飞 · AI Productivity

Meeting recording transcription and AI minutes with high Chinese accuracy. Free tier has trial hours.

Freemium Chinese Details →
Tool & Platform Beginner

Tongyi Tingwu

阿里巴巴 · AI Productivity

Alibaba's audio/video transcription and summarization — auto-organizes key points and chapters from online classes and meetings. Free tier has quota.

Freemium Chinese Details →
Tool & Platform Beginner

Udio

Udio · AI Audio & Music

An AI music tool with refined audio quality — strong vocals and mixing. Free tier has monthly credits.

Freemium English Details →
Tool & Platform Beginner

Stable Audio

Stability AI · AI Audio & Music

Stability's music and SFX generator — good for scoring and sound assets. Free tier has limited monthly generations.

Freemium English Details →
Tool & Platform Beginner

ElevenLabs

ElevenLabs · AI Audio & Music

The most popular AI voice tool — high-quality multilingual TTS and cloning. Free tier: ~10 minutes/month.

Freemium English Details →
Tool & Platform Beginner

Fish Audio

Fish Audio · AI Audio & Music

An open-source-friendly TTS platform with natural Chinese speech, free credits, voice cloning and API access.

Freemium Chinese Details →
Tool & Platform Intermediate

ChatTTS

ChatTTS · AI Audio & Music

An open-source Chinese TTS project with natural conversational speech, deployable locally — good for fine-tuning and learning.

Free Chinese Details →
Tool & Platform Intermediate

Dify

Dify · AI Agent Platforms

An open-source LLM app development platform with visual RAG and workflow orchestration, self-hostable, free community edition — a mainstream pick for knowledge bases and agents.

Freemium English Details →
Tool & Platform Intermediate

n8n

n8n · AI Agent Platforms

An open-source automation workflow tool with 400+ app integrations — wire AI into daily automation. Self-hosting is free.

Freemium English Details →
Tool & Platform Intermediate

FastGPT

FastGPT · AI Agent Platforms

An open-source knowledge-base Q&A platform with out-of-the-box RAG orchestration and visual management, thorough Chinese docs — good for enterprise knowledge bases.

Free Chinese Details →
Tool & Platform Beginner

Zapier

Zapier · AI Agent Platforms

The largest overseas automation integration platform, connecting thousands of apps; Zapier AI helps design flows. Free tier has limited monthly tasks.

Freemium English Details →
Tool & Platform Intermediate

Make

Make · AI Agent Platforms

A visual automation platform with canvas-style orchestration of complex flows, strong branching and error handling. Free tier has limited monthly operations.

Freemium English Details →
Tool & Platform Intermediate

Alibaba Cloud Bailian

阿里巴巴 · AI Agent Platforms

Alibaba's one-stop LLM development platform — model APIs, knowledge bases and app orchestration, with free credits for new users. The official entry point for Qwen APIs.

Freemium Chinese Details →
Tool & Platform Beginner

Tencent Yuanqi

腾讯 · AI Agent Platforms

Tencent's agent platform — low-code building with publishing into the WeChat ecosystem. Free tier usable; the official channel for WeChat mini-program agents.

Free Chinese Details →
Tool & Platform Beginner

Baidu Agents Platform

百度 · AI Agent Platforms

Baidu's agent creation and distribution platform — build agents and distribute them to Baidu Search and ERNIE Bot. Building is free.

Free Chinese Details →
Tool & Platform Beginner

Flowith

Flowith · AI Agent Platforms

A canvas-style AI creation tool with multi-threaded chats and knowledge-base management — good for deep research and content production. Free tier has quota.

Freemium Chinese Details →
Tool & Platform Beginner

Metaso AI Search

秘塔科技 · AI Learning & Research

An ad-free AI search that aggregates academic and web sources with citations — good for papers and research. Free to use.

Free Chinese Details →
Tool & Platform Beginner

Immersive Translate

沉浸式翻译 · AI Learning & Research

A bilingual side-by-side browser translation extension — the tool for reading English docs, papers and subtitles. Core features free; the standard for accessing first-hand English material.

Free Multilingual (incl. Chinese) Details →
Tool & Platform Beginner

ChatDOC

ChatDOC · AI Learning & Research

A document Q&A tool — upload PDF/Word, ask questions and jump to source paragraphs. Good for papers and contracts. Free tier has quota.

Freemium Chinese Details →
Tool & Platform Beginner

Felo

Felo · AI Learning & Research

An AI search engine that turns results into cited reports, with multilingual search. Free tier is daily-limited.

Freemium Multilingual (incl. Chinese) Details →