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[GH-ISSUE #18658] feat: Add WEBUI_LANGUAGE Environment Variable to Force Default Language for All New Users #18662

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opened 2026-04-20 00:52:29 -05:00 by GiteaMirror · 0 comments
GiteaMirror commented 2026-04-20 00:52:29 -05:00
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Originally created by @EverThingy on GitHub (Oct 27, 2025).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/18658

Check Existing Issues

  • I have searched all existing open AND closed issues and discussions for similar requests. I have found none that is comparable to my request.

Problem Description

While issue #1713 successfully implemented auto-detection of the user’s browser language (a great improvement), it does not provide a way to force a default language for all new users, regardless of their browser settings.

This is a critical requirement for Enterprise deployments where all users should see the UI in a specific language

Desired Solution you'd like

Add an environment variable WEBUI_LANGUAGE to set a default language. e.g. WEBUI_LANGUAGE=nl-NL

  • The WebUI ignores browser language detection for new/unauthenticated users
  • The UI loads with the specified language as the default
  • The setting is applied before login, so even first-time visitors see the correct language
  • If unset, behavior remains unchanged (auto-detect from browser)

Alternatives Considered

No response

Additional Context

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Originally created by @EverThingy on GitHub (Oct 27, 2025). Original GitHub issue: https://github.com/open-webui/open-webui/issues/18658 ### Check Existing Issues - [x] I have searched all existing open AND closed issues and discussions for similar requests. I have found none that is comparable to my request. ### Problem Description While issue #1713 successfully implemented auto-detection of the user’s browser language (a great improvement), it does not provide a way to force a default language for all new users, regardless of their browser settings. This is a critical requirement for Enterprise deployments where all users should see the UI in a specific language ### Desired Solution you'd like Add an environment variable WEBUI_LANGUAGE to set a default language. e.g. `WEBUI_LANGUAGE=nl-NL` - The WebUI ignores browser language detection for new/unauthenticated users - The UI loads with the specified language as the default - The setting is applied before login, so even first-time visitors see the correct language - If unset, behavior remains unchanged (auto-detect from browser) ### Alternatives Considered _No response_ ### Additional Context _No response_
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Reference: github-starred/open-webui#18662
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