Open-source AI tools in this directory span local coding agents, multi-model chat clients, and automation platforms. Browse options like Claude Code for terminal-based agentic coding, Activepieces for integration-heavy workflows, and ChatALL for talking to several models side by side. Every listing is free to use in your own projects.
The most popular open-source AI tool by GitHub stars is N8n(183.6k stars), followed by AutoGPT(173.4k stars)and Ollama(168.6k stars). This page lists the top 30 of 190 ai tools in the directory, ranked by community adoption.
| # | Tool | Stars | Language | License |
|---|---|---|---|---|
| 1 | N8n A powerful fair-code workflow automation platform with native AI capabilities. It combines visual workflow building with the ability to include custom code. Self-host or use the cloud version with over 400+ integrations available. | 183.6k | TypeScript | Other |
| 2 | AutoGPT AutoGPT is the vision of accessible AI for everyone, providing tools to focus on what matters in building and utilizing AI. | 173.4k | Python | Other |
| 3 | Ollama Ollama is an AI platform that enables you to easily run and experiment with popular open source and proprietary language models like OpenAI gpt-oss, DeepSeek-R1, Gemma 3, and more—locally, with a focus on privacy and low setup overhead. | 168.6k | Go | MIT License |
| 4 | Transformers State-of-the-art Machine Learning library for Pytorch, TensorFlow, and JAX, providing thousands of pre-trained models for natural language processing, computer vision, and other areas. | 159.2k | Python | Apache License 2.0 |
| 5 | Stable-diffusion-webui A comprehensive web-based user interface for Stable Diffusion, providing powerful tools for generating and modifying images using AI models directly from your browser. | 158.9k | Python | GNU Affero General Public License v3.0 |
| 6 | Awesome ChatGPT Prompts A curated collection of ChatGPT prompts to enhance the use of ChatGPT and other language model tools. | 139.5k | TypeScript | Creative Commons Zero v1.0 Universal |
| 7 | Dify A production-ready platform facilitating the development of agentic workflows with robust features and integration capabilities. | 137.3k | TypeScript | Other |
| 8 | Open-webui A user-friendly AI interface that supports Ollama, OpenAI API, and other AI backends, providing an accessible platform for interacting with AI models. | 131.3k | Python | Other |
| 9 | Claude Code Claude Code is an agentic coding tool that lives in your terminal, understands your codebase, and helps you code faster by executing routine tasks, explaining complex code, and handling git workflows - all through natural language commands. | 112.6k | Shell | — |
| 10 | Llama.cpp Efficient LLM inference in C/C++ for high-performance computing applications. | 103.2k | C++ | MIT License |
A powerful fair-code workflow automation platform with native AI capabilities. It combines visual workflow building with the ability to include custom code. Self-host or use the cloud version with over 400+ integrations available.
AutoGPT is the vision of accessible AI for everyone, providing tools to focus on what matters in building and utilizing AI.
Ollama is an AI platform that enables you to easily run and experiment with popular open source and proprietary language models like OpenAI gpt-oss, DeepSeek-R1, Gemma 3, and more—locally, with a focus on privacy and low setup overhead.
State-of-the-art Machine Learning library for Pytorch, TensorFlow, and JAX, providing thousands of pre-trained models for natural language processing, computer vision, and other areas.
A comprehensive web-based user interface for Stable Diffusion, providing powerful tools for generating and modifying images using AI models directly from your browser.
A curated collection of ChatGPT prompts to enhance the use of ChatGPT and other language model tools.
A production-ready platform facilitating the development of agentic workflows with robust features and integration capabilities.
A user-friendly AI interface that supports Ollama, OpenAI API, and other AI backends, providing an accessible platform for interacting with AI models.
Claude Code is an agentic coding tool that lives in your terminal, understands your codebase, and helps you code faster by executing routine tasks, explaining complex code, and handling git workflows - all through natural language commands.
Efficient LLM inference in C/C++ for high-performance computing applications.
Robust Speech Recognition via Large-Scale Weak Supervision, capable of transcribing and translating spoken language.
ComfyUI is a powerful, modular diffusion model GUI, API, and backend featuring a graph/nodes-based interface. It enables users to experiment with and deploy diffusion models through an intuitive visual workflow, catering to creators and researchers alike.
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A tool to make websites accessible and navigable for AI agents, enhancing their interaction capabilities with web content.
🏡 Open source home automation that prioritizes local control and privacy, making your smart home truly yours.
Model Context Protocol Servers provide a framework for managing and deploying machine learning models effortlessly across various environments.
RAGFlow is a leading open-source Retrieval-Augmented Generation (RAG) engine that combines advanced RAG methods with Agent capabilities, delivering a superior, context-rich experience for Large Language Models (LLMs). It enables efficient information retrieval and contextual augmentation, optimizing generative AI pipelines.
A comprehensive guide with examples for using the OpenAI API effectively.
A curated list of awesome Machine Learning frameworks, libraries, and software, providing insights into various useful resources in the domain.
An open-source, modern-design AI chat framework supporting multiple AI providers such as OpenAI, Claude 3, Gemini, Ollama, DeepSeek, and Qwen. It offers features like knowledge base management, multi-modality support through plugins and artifacts, and easy deployment for private AI applications like ChatGPT and Claude.
PaddleOCR is a powerful and lightweight open source OCR toolkit that enables conversion of images and PDF documents into structured data for AI applications. It supports over 100 languages, making it a versatile bridge between image/PDF content and large language models (LLMs) for a wide range of tasks.
Crawl4AI is an open-source and LLM-friendly web crawler and scraper that facilitates efficient data extraction from the web.
A Python ETL framework designed for efficient stream processing, real-time analytics, large language model (LLM) pipelines, and retrieval-augmented generation (RAG). pathway enables building robust and scalable data workflows with support for complex, real-time data transformations and AI-driven analytics.
A natural language interface for computers that enhances human-computer interaction through voice and text commands.
Bring projects, wikis, and teams together with AI. AppFlowy is the ultimate AI-driven collaborative workspace, offering an open-source alternative to Notion while keeping control of your data.
A cutting-edge open-source operating system for robotics, enhancing the driver assistance systems on over 275 supported cars.
DeerFlow is a community-driven Deep Research framework, combining language models with tools like web search, crawling, and Python execution, while contributing back to the open-source community. It enables enhanced research capabilities through integration with various technologies.
Autonomous coding agent integrated directly into your IDE, offering capabilities like file creation and editing, command execution, and browser usage, all with your permission at every step.
Inference code for Llama models, a versatile solution for running Llama model inferences efficiently.
Docling is a powerful tool to prepare, organize, and optimize your documents for generative AI systems, enhancing compatibility and usefulness for modern AI workflows.
A lightning-fast search engine API bringing AI-powered hybrid search to your sites and applications.
N8n leads by GitHub stars(183.6k). A powerful fair-code workflow automation platform with native AI capabilities. It combines visual workflow building with the ability to include custom code. Self-host or use the cloud version with over 400+ integrations available.
Yes. Every tool on this list is open source and free to use in your own projects. Many can be self-hosted.
Tools are ranked by GitHub star count, a strong proxy for community adoption and active maintenance. Star counts are refreshed regularly.
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