> /v1/alternatives/chatgpt
Open source alternatives to ChatGPT[011]
ChatGPT is a conversational AI assistant for writing, coding, analysis and search, with file uploads, memory and custom tools. Below are 11 self-hostable open source alternatives, ranked by GitHub popularity.
Open WebUI
User-friendly AI Interface (Supports Ollama, OpenAI API, ...)
★ STARS
136.1k
⑂ FORKS
19.4k
AnythingLLM
Building the definitive all-in-one on-device AI productivity tool
★ STARS
59.7k
⑂ FORKS
6.5k
cherry-studio
AI productivity studio with smart chat, autonomous agents, and 300+ assistants. Unified access to frontier LLMs
★ STARS
45.3k
⑂ FORKS
4.3k
Jan
Jan is an open source alternative to ChatGPT that runs 100% offline on your computer.
★ STARS
42.4k
⑂ FORKS
2.8k
LibreChat
Enhanced ChatGPT Clone: Features Agents, MCP, DeepSeek, Anthropic, AWS, OpenAI, Responses API, Azure, Groq, o1, GPT-5, Mistral, OpenRouter, Vertex AI, Gemini, Artifacts, AI model switching, message search, Code Interpreter, langchain…
★ STARS
36.7k
⑂ FORKS
7.5k
Khoj
AI for humans
★ STARS
34.4k
⑂ FORKS
2.2k
Leon
Leon is your open-source personal assistant.
★ STARS
17.2k
⑂ FORKS
1.4k
Morphic
An AI-powered search engine with a generative UI
★ STARS
8.8k
⑂ FORKS
2.3k
5ire
5ire is a cross-platform desktop AI assistant, MCP client. It compatible with major service providers, supports local knowledge base and tools via model context protocol servers .
★ STARS
5.2k
⑂ FORKS
405
Fullmoon
Chat with private and local large language models
★ STARS
2.3k
⑂ FORKS
223
Zola
Open chat interface for all your models.
★ STARS
1.5k
⑂ FORKS
299
// EDITOR'S TAKE
Open WebUI is the closest to the hosted ChatGPT experience, with multi-user accounts, document chat and tool calling on top of Ollama or any OpenAI-compatible API. LibreChat is the stronger choice when you want to mix providers and keep tight admin control over who can use what, while Jan is for people who want everything running locally and will accept smaller models to get it.
// FREQUENTLY ASKED
What is the best open source ChatGPT alternative?
Open WebUI is the most popular open source ChatGPT alternative by GitHub stars (136,084 stars). The other 10 options are ranked above.
Are these ChatGPT alternatives self-hostable?
Yes — every project listed here is open source and runs on your own infrastructure. Click into a project to see its license, stars, language, and current health status.
Are they free?
All projects shown are free and open source. Check each project's license page for the terms — most are MIT, Apache 2.0, or AGPL.
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