Open WebUI

license

Open-WebUI-License(BSD-3-Clause-based + non-OSI branding clause: branding may not be removed above 50 end-users/30d without enterprise license or written permission)

source

public

enterprise-tier

commercial license to remove branding

Source-available, not OSI: a branding-retention clause caps free branding removal at 50 end-users per 30 days, above which an enterprise license or written permission is required. That charges for a class of use and fails the OSS Definition, though it is widely marketed as open source. Score corrected from 3 to 2 on 2026-07-30. The software ladder has rungs at 1, 2, 4 and 5 and none at 3, so 3/source_available was not a pair any rule could produce; the ladder scores "you can read it and not run it freely" at 2.

• https://github.com/open-webui/open-webui/blob/main/LICENSE recorded 2026-06-04

  BSD-3-Clause-derived license with Section 4 branding-retention clause (<=50 users/30d), non-OSI

• https://github.com/open-webui/open-webui recorded 2026-06-04

  v0.9.6 latest release, self-hosted AI interface