Jan vs Open-WebUI
| Tagline | Offline-first, privacy-focused desktop app to run LLMs locally on any hardware | Feature-rich self-hosted chat UI for Ollama and OpenAI-compatible APIs |
| Category | AI & LLM Tools | AI & LLM Tools |
| Replaces | ChatGPT, OpenAI API | ChatGPT, OpenAI API |
| GitHub stars | 24k | 143k |
| Language | TypeScript | Docker |
| License | AGPL-3.0 | BSD-3-Clause |
| Self-host difficulty | 1/5 Effortless | 2/5 Easy |
| Deploy options | Manual | Docker Docker Compose |
| Managed hosting | ||
| Last updated | 1 month ago | 8 days ago |
| View repo | View repo |
Where each falls short
The honest trade-offs — what you give up with each, versus the proprietary tools they replace.
Jan
- Desktop-only; no headless server deployment mode
- Multi-user collaboration not supported
- Limited to llama.cpp-compatible model formats
Open-WebUI
- Advanced reasoning models and GPT-4o-level capabilities depend entirely on the underlying model quality
- No native mobile app; browser-only experience
- Enterprise SSO/SAML and audit logging require additional configuration
- Plugin/tool ecosystem is smaller and less mature than ChatGPT's GPT store
Bottom line
Choose Jan if you want the lower-effort setup; choose Open-WebUI for the larger community and ecosystem. Open-WebUI has seen more recent development. Open each guide below for deploy steps and the full feature gap.
Jan
Offline-first, privacy-focused desktop app to run LLMs locally on any hardware