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Open WebUISillyTavern
Freemium

Free to self-host. The project sells an enterprise plan with support and branding rights.

 Free

Free and open source under the AGPL. You pay only for whatever model backend you connect…

Self-hosted, Web Windows, macOS, Linux, Self-hosted
  • One interface for local Ollama models and any OpenAI-compatible API
  • Document upload and retrieval so you can ask questions about your own files
  • Deep prompt control: character cards, lorebooks, world info, author's notes and templates
  • Connects to local runners as well as commercial APIs
  • The licence adds a branding condition, so it is not plain BSD
  • It is a server you have to run, update and secure yourself
  • A front end only; you must supply a model backend
  • Setup involves Node or Docker rather than an installer
Self-hosted, Web application Self-hosted
Not stated if open source Open source
License: Open WebUI License, based on BSD-3-Clause with a branding clause License: AGPL-3.0
No account needed No account needed
Works offline Works offline

Checked September 21, 2026

Checked September 21, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.