Open WebUI

What Open WebUI helps you do

Open WebUI is a self-hosted browser interface for local and connected models. It adds document retrieval and extensible tools; the current licence has branding conditions that matter for larger rebranded deployments.

Best for: Self-hosted chat for local and connected models.

A small task to try

1. Deploy on a private test environment and create an admin account
2. Connect one local model before adding external integrations
3. Upload a fictional handbook section to a test knowledge collection
4. Check the cited passage and the selected model’s data route

Illustrative input: Use the handbook only: when does the office close? The handbook states 18:00 Monday–Friday.

Illustrative expected result: 18:00 on weekdays, with a reference to the supplied passage and no invented holiday schedule. This is an editorial example, not a recorded vendor test. Check it against your original material before using it.

Access and buying guidance

Core self-hosted use is free under the current licence; enterprise licensing is available. Hosting and connected model APIs are separate costs. Read the branding exceptions before redistributing.

Self-hosting requires updates, access controls and backup maintenance. Start with the smallest useful task; keep the original input and compare the result before committing to a larger workflow.

Alternatives for a different workflow

Dify: compare app-building and workflow publishing. HuggingChat: choose hosted chat instead of operating a server.

Sources and review

Reviewed 9 October 2026 against official product documentation and official pricing / access terms. Feature access and prices can change; the linked provider terms govern your account.