Open-source alternatives to LibreChat

2 free, open-source alternatives with 217.7K total GitHub stars. The best open-source alternative to LibreChat is Open WebUI, with 139.6K GitHub stars.

Updated August 2026Stats synced from GitHub
#1
Open WebUI

Open WebUI

Self-hosted AI interface — Ollama, OpenAI-compatible, RAG built-in.

BSD-3-Clause alternative to ChatGPT with multi-model support, code execution, file upload, and RBAC. Single Docker command to deploy.

aichatui
139.6K20KBSD-3-Clause
vs ChatGPT
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#2
LobeChat

LobeChat

Open-source AI chat — plugin ecosystem, multi-model, voice chat.

Apache-2.0 alternative to ChatGPT with GPT-4, Claude, Gemini, and Ollama support. Material Design UI, DALL-E/Flux image generation, and TTS/STT.

aichatagents
78.1K15.4KApache-2.0
vs ChatGPT
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Compare LibreChat alternatives

ToolStarsForksLicenseSelf-hosted
Open WebUI139.6K20KBSD-3-ClauseYes
LobeChat78.1K15.4KApache-2.0Yes

LibreChat is itself a free, open-source, self-hosted AI chat interface that unifies multiple model providers behind one UI, with enterprise auth (SAML, OIDC, LDAP) included at no extra cost. Since LibreChat is already open source, teams comparing it against alternatives are usually choosing between different self-hosted chat interfaces based on plugin ecosystem or which local/hosted models they want to prioritize.

LobeChat is a close comparison, also open source with a plugin ecosystem and multi-model support. Open WebUI leans more toward local-model workflows, with tight Ollama integration and built-in RAG.

FAQ

Is there a free, open-source alternative to LibreChat?

LibreChat itself is already free and open source. LobeChat and Open WebUI are also open source and free to self-host.

What's the best open-source alternative to LibreChat?

LobeChat is the closer match for a similar plugin-driven, multi-model chat experience. Open WebUI is the better pick if you're primarily running local models through Ollama.

What are the top open-source alternatives to LibreChat?

Browse all open-source alternatives to LibreChat above, or explore the full AI & LLM category for more options.

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