the open source movement

Replace ChatGPT.

8 open source alternatives, ranked by health. We re-check every project weekly, so you don’t migrate to something abandoned.

Ranked by health

  1. Open WebUISelf-hosted web chat interface for local and API-hosted language models, with RAG, tools and multi-user support.★ 154k BSD-3-Clause-based Open WebUI License with branding-retention clause Python self-host
  2. NextChatCross-platform AI chat client for web and desktop that connects to many LLM providers.★ 89k MIT TypeScript self-host managed
  3. LobeHubMulti-model AI chat and agent workspace with knowledge bases, plugins and MCP tools, self-hosted or cloud.★ 83k LobeHub Community License (Apache-2.0 + commercial-derivative restrictions) TypeScript self-host managed
  4. AnythingLLMDesktop and Docker AI chat app with document workspaces, RAG and agents over any LLM.★ 67k MIT JavaScript self-host managed
  5. LibreChatSelf-hosted multi-user AI chat interface supporting many model providers, agents, MCP tools and file uploads.★ 45k MIT TypeScript self-host
  6. JanDesktop AI chat app that runs local language models offline or connects to remote model APIs.★ 45k Apache-2.0 Rust self-host
  7. ChatboxDesktop chat client for using many AI model APIs and local models in one interface.★ 42k GPL-3.0 TypeScript self-host managed
  8. HuggingChatSelf-hostable chat web app for open language models, the codebase behind HuggingChat.★ 11k Apache-2.0 TypeScript self-host managed
How the ranking works

Health blends commit recency, release cadence, issue throughput, contributor breadth and star growth. Stars are shown but never ranked on. The full method.