AI Tools Scout
Open-source ToolsLLM ProjectsMCP ServersMethodology
AI Tools Scout

An open-source AI tools directory with clear use cases, visible source freshness, and maintenance evidence for anyone deciding what to try.

Explore
Open source AI projectsOpen source LLM projectsMCP servers list
More
SkillsContentAbout
Rankings use public ecosystem signals. Treat them as a starting point, then confirm license, setup, safety, and fit with the upstream project.
  1. Home
  2. /Open-source Tools

Open-source AI tools directory

Open Source AI Tools & Projects Directory

Discover 868 open source AI tools across 7 categories. Start with what each tool does, then use current activity, maintenance signals, and source freshness when you need a deeper comparison.

Project data last synced 12h ago.
Most adopted
All-time GitHub footprint
Trending
Fastest weekly growth
Healthiest
Strongest maintenance signals
Recently updated
Latest repository activity
All
(selected)
🤖 Agent
🧱 Framework
⚡ Inference
💬 Interface
☁️ Platform
🎨 Image
🎵 Audio
✓ Verified evidence

Showing 1-50 of 868 projects

#ProjectCategoryStars▼Weekly▽TrendHealth▽LanguageUpdated▽
1
openclaw
Your own personal AI assistant. Any OS. Any Platform. The lobster way. 🦞
Recently verified
🧱 Framework383.8K+12.9KStrong98/100TypeScript12h ago
2
ECC
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
Recently verified
🤖 Agent232.2K+52.6KStrong95/100JavaScript14h ago
3
hermes-agent
The agent that grows with you
Recently verified
🤖 Agent218.9K+74.1KStrong100/100Python12h ago
4
n8n
Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.
Recently verified
🧱 Framework197.5K+10.0KStrong92/100TypeScript12h ago
5
tensorflow
An Open Source Machine Learning Framework for Everyone
Recently verified
🧱 Framework196.5K+1.4KStrong84/100C++12h ago
6
AutoGPT
AutoGPT is the vision of accessible AI for everyone, to use and to build on. Our mission is to provide the tools, so that you can focus on what matters.
Recently verified
🤖 Agent185.7K+174Strong90/100Python12h ago
7
ollama
Get up and running with Kimi-K2.6, GLM-5.2, MiniMax, DeepSeek, gpt-oss, Qwen, Gemma and other models.
Recently verified
⚡ Inference176.7K+450Strong90/100Go23h ago
8
markitdown
Python tool for converting files and office documents to Markdown.
Recently verified
🤖 Agent168.2K+45.6KWatch59/100Python15h ago
9
prompts.chat
f.k.a. Awesome ChatGPT Prompts. Share, discover, and collect prompts from the community. Free and open source — self-host for your organization with complete privacy.
Recently verified
⚡ Inference166.2K+4.2KHealthy77/100HTML1d ago
10
stable-diffusion-webui
Stable Diffusion web UI
Recently verified
🎨 Image164.2K+1.3KHealthy66/100Python4mo ago
11
transformers
🤗 Transformers: the model-definition framework for state-of-the-art machine learning models in text, vision, audio, and multimodal models, for both inference and training.
Recently verified
🧱 Framework162.8K+220Strong91/100Python13h ago
12
JavaGuide
Java 面试 & 后端通用面试指南,覆盖计算机基础、数据库、分布式、高并发、系统设计与 AI 应用开发
Recently verified
🤖 Agent157.2K+1.6KHealthy79/100JavaScript1d ago
13
firecrawl
The API to search, scrape, and interact with the web at scale. 🔥
Recently verified
🤖 Agent154.5K+36.0KStrong82/100TypeScript12h ago
14
langflow
Langflow is a powerful tool for building and deploying AI-powered agents and workflows.
Recently verified
💬 Interface152.2K+4.2KStrong88/100Python12h ago
15
dify
Build Agentic workflows, RAG pipelines, with rich AI model and tool support on one collaborative workspace. Deploy on cloud, VPC, or self-hosted, so teams move from prototype to production without rebuilding the stack.
Recently verified
🧱 Framework149.8K+815Strong94/100TypeScript14h ago
16
open-webui
User-friendly AI Interface (Supports Ollama, OpenAI API, ...)
Recently verified
💬 Interface146.4K+1.0KStrong95/100Python17h ago
17
langchain
The agent engineering platform.
Recently verified
🤖 Agent142.3K+599Strong86/100Python13h ago
18
system-prompts-and-models-of-ai-tools
FULL Augment Code, Claude Code, Cluely, CodeBuddy, Comet, Cursor, Devin AI, Junie, Kiro, Leap.new, Lovable, Manus, NotionAI, Orchids.app, Perplexity, Poke, Qoder, Replit, Same.dev, Trae, Traycer AI, VSCode Agent, Warp.dev, Windsurf, Xcode, Z.ai Code, Dia & v0. (And other Open Sourced) System Prompts, Internal Tools & AI Models
Recently verified
🤖 Agent142.2K+5.0KHealthy63/100-10d ago
19
awesome-llm-apps
100+ AI Agents, Agent Skills and RAG Apps - Free and Open Source.
Recently verified
🤖 Agent126.2K+16.4KHealthy76/100Python1d ago
20
spec-kit
💫 Toolkit to help you get started with Spec-Driven Development
Recently verified
🧱 Framework123.3K+27.3KStrong100/100Python12h ago
21
ComfyUI
The most powerful and modular diffusion model GUI, api and backend with a graph/nodes interface.
Recently verified
🎨 Image121.9K+1.0KStrong87/100Python12h ago
22
llama.cpp
LLM inference in C/C++
Recently verified
⚡ Inference121.3K+1.2KStrong95/100C++13h ago
23
cc-switch
A cross-platform desktop All-in-One assistant for Claude Code, Codex, OpenCode, OpenClaw, Grok Build & Hermes Agent. Only official website: ccswitch.io
Recently verified
💬 Interface120.1K+52.9KStrong92/100Rust1d ago
24
generative-ai-for-beginners
21 Lessons, Get Started Building with Generative AI
Recently verified
💬 Interface113.4K+2.7KHealthy70/100Jupyter Notebook1d ago
25
gemini-cli
An open-source AI agent that brings the power of Gemini directly into your terminal.
Recently verified
🤖 Agent106.1K+2.4KStrong97/100TypeScript12h ago
26
browser-use
🌐 Make websites accessible for AI agents. Automate tasks online with ease.
Recently verified
🤖 Agent106.1K+12.7KStrong89/100Python12h ago
27
whisper
Robust Speech Recognition via Large-Scale Weak Supervision
Recently verified
🎵 Audio105.4K+370Watch56/100Python3mo ago
28
pytorch
Tensors and Dynamic neural networks in Python with strong GPU acceleration
Recently verified
🧱 Framework101.9K+170Strong82/100Python12h ago
29
LLMs-from-scratch
Implement a ChatGPT-like LLM in PyTorch from scratch, step by step
Recently verified
💬 Interface99.6K+6.6KHealthy67/100Jupyter Notebook11d ago
30
MoneyPrinterTurbo
利用 AI 大模型和自动化工作流,根据主题或关键词一键生成高清短视频。Generate HD short videos from a topic or keyword with an automated AI workflow.
Recently verified
🎵 Audio98.6K0Healthy68/100Python2d ago
31
Deep-Live-Cam
real time face swap and one-click video deepfake with only a single image
Recently verified
🧱 Framework95.1K+2.2KHealthy64/100Python4d ago
32
TradingAgents
TradingAgents: Multi-Agents LLM Financial Trading Framework
Recently verified
🤖 Agent94.1K+20.2KHealthy67/100Python4d ago
33
graphify
Turn any codebase, with its docs, SQL schemas, configs, and PDFs, into a queryable knowledge graph. A /graphify skill for Claude Code, Cursor, Codex, and Gemini CLI: local deterministic AST parsing, every edge explained, no vector store.
Recently verified
🧱 Framework93.8K+47.0KStrong100/100Python12h ago
34
caveman
🪨 why use many token when few token do trick — Claude Code skill that cuts 65% of tokens by talking like caveman
Recently verified
⚡ Inference92.1K+33.7KHealthy78/100JavaScript19d ago
35
autoresearch
AI agents running research on single-GPU nanochat training automatically
Recently verified
🤖 Agent91.8K+11.4KHealthy60/100Python3mo ago
36
awesome-mcp-servers
A collection of MCP servers.
Recently verified
🧱 Framework91.1K+4.4KStrong80/100-12h ago
37
opencv
Open Source Computer Vision Library
Recently verified
🧱 Framework90.1K+2.6KHealthy76/100C++1d ago
38
ML-For-Beginners
12 weeks, 26 lessons, 52 quizzes, classic Machine Learning for all
Recently verified
💬 Interface88.5K+2.7KHealthy75/100Jupyter Notebook7d ago
39
claude-mem
Persistent Context Across Sessions for Every Agent – Captures everything your agent does during sessions, compresses it with AI, and injects relevant context back into future sessions. Works with Claude Code, OpenClaw, Codex, Gemini, Hermes, Copilot, OpenCode + More
Recently verified
🤖 Agent88.2K+13.4KStrong98/100JavaScript2d ago
40
ponytail
Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote.
Recently verified
🤖 Agent87.8K0Healthy69/100JavaScript7d ago
41
vllm
A high-throughput and memory-efficient inference and serving engine for LLMs
Recently verified
⚡ Inference86.9K+606Strong88/100Python12h ago
42
PaddleOCR
Turn any PDF or image document into structured data for your AI. A powerful, lightweight OCR toolkit that bridges the gap between images/PDFs and LLMs. Supports 100+ languages.
Recently verified
🧱 Framework86.0K+8.4KHealthy76/100Python19h ago
43
ragflow
RAGFlow is a leading open-source Retrieval-Augmented Generation (RAG) engine that fuses cutting-edge RAG with Agent capabilities to create a superior context layer for LLMs
Recently verified
🤖 Agent85.7K+5.4KStrong98/100Go17h ago
44
cs-video-courses
List of Computer Science courses with video lectures.
Recently verified
🧱 Framework82.7K+1.5KHealthy60/100-15d ago
45
llm-course
Course to get into Large Language Models (LLMs) with roadmaps and Colab notebooks.
Recently verified
⚡ Inference81.1K+1.9KWatch50/100-5mo ago
46
open-design
🎨 The open-source Claude Design alternative. 🖥️ Local-first desktop app. 🖼️ Your coding agent becomes the design engine: prototypes, landing pages, dashboards, slides, images & video — real files, HTML/PDF/PPTX/MP4 export. 🤖 Claude Code / Codex / Cursor / Gemini / OpenCode / Qwen & 20+ CLIs via BYOK.
Recently verified
🤖 Agent80.7K+43.2KStrong100/100TypeScript15h ago
47
lobehub
🤯 LobeHub is your Chief Agent Operator, organizing your agents into 7×24 operations by hiring, scheduling, and reporting on your entire AI team.
Recently verified
💬 Interface80.7K+3.8KStrong98/100TypeScript12h ago
48
netdata
The fastest path to AI-powered full stack observability, even for lean teams.
Recently verified
🧱 Framework79.8K+1.0KStrong91/100Go12h ago
49
deer-flow
An open-source long-horizon SuperAgent harness that researches, codes, and creates. With the help of sandboxes, memories, tools, skill, subagents and message gateway, it handles different levels of tasks that could take minutes to hours.
Recently verified
🤖 Agent77.6K+10.7KStrong95/100Python17h ago
50
Prompt-Engineering-Guide
🐙 Guides, papers, lessons, notebooks and resources for prompt engineering, context engineering, RAG, and AI Agents.
Recently verified
💬 Interface76.8K+2.4KWatch54/100MDX4mo ago
PreviousPage 1 of 18Next

How to use the ranking

Turn a leaderboard into an adoption shortlist

1. Match the use case

Start with category and search filters. An agent framework, inference runtime, interface, and image model solve different problems even when all are called “AI tools.”

2. Check present-tense health

Use weekly growth, last update, commit frequency, and health score to distinguish active projects from repositories living on historical popularity.

3. Validate in your environment

Open the detail page, inspect the upstream repository and license, then run a small proof of concept. Rankings narrow the field; they do not replace technical due diligence.

Quick answers

Open source AI project rankings

What makes an open source AI project worth adopting?+

Start with the use case, then look beyond stars. Recent activity, releases, issue handling, contributor depth, documentation, license, and setup fit all matter. This directory exposes those signals so you can create a shortlist before trying a tool.

Is the most-starred AI project always the best choice?+

No. Stars show awareness and broad adoption, but they do not guarantee active maintenance or suitability for your use case. Use the Trending, Healthiest, and Recently Updated views alongside the all-time ranking.

How should I compare two AI projects?+

Compare maturity, current momentum, maintenance health, language, license, deployment model, integrations, and operating cost. Project detail pages also link to side-by-side comparison pages when a relevant peer is available.

Weekly AI open-source movers

Get the fastest-growing projects, useful MCP servers, and technical reads in one weekly email.