ChatBot UI
AI Chat UIsChatGPT but better
Replaces ChatGPT
Best Free AI Chat UIs for self-hosting
The 5 best Free ai chat uis you can self-host, ranked by community traction.
RAGApp
AI Chat UIsNo-code agentic RAG deployment in a Docker container
Replaces OpenAI Assistants
Open WebUI Pipelines
AI Chat UIsPlugin framework for extending self-hosted AI chat UIs
Replaces ChatGPT Plugins
Chatpad AI
AI Chat UIsPolished offline-capable UI for the OpenAI-compatible APIs
Replaces ChatGPT
ChatGPT-Next-Web LangChain
AI Chat UIsChatGPT web UI fork with LangChain tools and plugins
Replaces ChatGPT
No apps match these filters.
At a glance
| App | Deploy effort | Difficulty | Min. RAM | License | ★ Stars |
|---|---|---|---|---|---|
| ChatBot UI | ≈5-minute setup | Easy | 512 MB | free | 33,335 |
| RAGApp | Under-an-hour setup | Easy | 1,024 MB | Apache-2.0 | 4,446 |
| Open WebUI Pipelines | Under-an-hour setup | Medium | 512 MB | MIT | 2,441 |
| Chatpad AI | Under-an-hour setup | Easy | 256 MB | MIT | 1,484 |
| ChatGPT-Next-Web LangChain | Under-an-hour setup | Easy | 256 MB | MIT | 1,187 |
Quick picks
- Most adopted: ChatBot UI (33,335 GitHub stars).
- Lightest footprint: Chatpad AI (from 256 MB RAM, against 1,024 MB for the heaviest here).
- Fastest to deploy: ChatBot UI (one-click platform packages).
- Licensing: 3 of 5 use MIT; check the rest individually if you plan to modify and redistribute.
Every option here is open-source and self-hostable, tagged Free within the ai chat uis category. Deploy effort is graded from published container recipes, not vendor claims — see the methodology.