AnythingLLM
Mintplex-Labs/anything-llm
Local-first desktop/Docker app for chatting with documents, agents and any LLM (local or cloud), with built-in RAG.
Install: Desktop download at anythingllm.com/download; Docker image also available.
Open-source alternatives to ChatGPT
9 open-source chat apps you can use instead of ChatGPT. Self-described alternatives are labelled separately from our own picks.
Our picks
Editorial picks: open-source projects that do a similar job to ChatGPT.
NextChat
ChatGPTNextWeb/NextChat
Lightweight, self-hostable ChatGPT-style web/desktop client for many model providers.
docker run -d -p 3000:3000 -e OPENAI_API_KEY=sk-xxxx -e CODE=your-password yidadaa/chatgpt-next-web
Chatbox
chatboxai/chatbox
Desktop and mobile AI client for many providers and local models, with prompt library and file chat.
Install: Installers on chatboxai.app and GitHub Releases.
Cherry Studio
CherryHQ/cherry-studio
Desktop AI studio with multi-provider chat, agents and 300+ preset assistants.
Install: Desktop installers on cherryai.com / GitHub Releases.
big-AGI
enricoros/big-AGI
Power-user AI chat suite with multi-model "Beam" comparisons, personas, voice and image generation; self-hostable.
Install: See docs/installation.md (Node or Docker).
Hugging Face Chat UI
huggingface/chat-ui
The open-source SvelteKit codebase behind HuggingChat; self-host a chat UI for any OpenAI-compatible endpoint.
git clone https://github.com/huggingface/chat-uiAlso listed on AIUseFlow
Open WebUIUser-friendly AI Interface (Supports Ollama, OpenAI API, ...) -…LibreChatLibreChat brings together all your AI conversations in one unified, customizable interface.JanJan is an open-source alternative to ChatGPT.
Stars, licences and last-commit dates come from the GitHub REST API, fetched 17 Oct 2026. Archived repos, repos with no commit in 12 months and non-open licences are excluded. Install commands are copied from each README.
FAQ
What are the best open-source alternatives to ChatGPT?
Our picks: AnythingLLM, NextChat, Chatbox, Cherry Studio, big-AGI, Hugging Face Chat UI, Open WebUI, LibreChat, Jan. Each one is open source; check the licence before commercial use.
Can I self-host a ChatGPT alternative for free?
The software is free to use under its licence. You still pay for your own hosting and for any model API you connect, unless you run a local model.
More open-source alternatives
Cursor · GitHub Copilot · Claude Code · Lovable, Bolt.new and v0 · Perplexity · Notion · NotebookLM · Vercel, Netlify and Heroku