AI tools · Updated October 2026
ChatGPT is OpenAI's AI chat assistant for writing, coding, and answering questions. If you would rather own your tools, here are 6 open source alternatives to ChatGPT, ranked by GitHub stars. Each one is free to use under its license, and you can read, change, and often self-host the code.
The most popular is Open WebUI with 156.4k stars, and the most recently updated is LobeHub, with a commit on Oct 21, 2026.
| Project | Stars | License | Language | Last commit |
|---|---|---|---|---|
 Open WebUI | 156.4k | Other | Python | Oct 21, 2026 |
 LobeHub | 83.4k | Other | TypeScript | Oct 21, 2026 |
 AnythingLLM | 67.4k | MIT | JavaScript | Oct 21, 2026 |
 Cherry Studio | 52.8k | AGPL-3.0 | TypeScript | Oct 21, 2026 |
 LibreChat | 46.1k | MIT | TypeScript | Oct 21, 2026 |
 Jan | 45k | Other | Rust | Oct 21, 2026 |
by open-webui
User-friendly AI Interface (Supports Ollama, OpenAI API, ...)
by lobehub
🤯 LobeHub is your Chief Agent Operator, organizing your agents into 7×24 operations by hiring, scheduling, and reporting on your entire AI team.
by Mintplex-Labs
Stop renting your intelligence. Own it with AnythingLLM. Everything you need for a powerful local-first agent experience
by CherryHQ
AI productivity studio with smart chat, autonomous agents, and 300+ assistants. Unified access to frontier LLMs
by LibreChat-AI
Enhanced ChatGPT Clone: Features Agents, MCP, Skills, DeepSeek, Anthropic, AWS, OpenAI, Responses API, Azure, Groq, o1, GPT-5, Mistral, OpenRouter, Vertex AI, Gemini, Artifacts, AI model switching,…
by janhq
Jan is an open source alternative to ChatGPT that runs 100% offline on your computer.
By GitHub stars, Open WebUI is the most popular open source alternative to ChatGPT right now, with 156.4k stars, followed by LobeHub and AnythingLLM. The best fit depends on your setup, so compare their licenses, languages, and recent activity in the table above.
Yes. All 6 projects on this page are open source, so the software itself is free to use, study, and change. Some of them also sell a hosted version or paid support.
LobeHub (last commit Oct 21, 2026), Cherry Studio (last commit Oct 21, 2026), and LibreChat (last commit Oct 21, 2026) have the most recent commits. Licenses on this list include MIT and AGPL-3.0.
