Open WebUI

Open-source · self-hostable · replaces 1 SaaS tool on os-alt

open-webui/open-webui · alive · ★ 137.0k · last commit 3d ago · 250 open issues

License: BSD-3-Clause

Good fit for Teams that want a ChatGPT-shaped multi-user web app with RBAC, prompt templates, and a built-in RAG knowledge base.

Weak at Image generation and voice mode — these need bolt-on integrations (e.g. Automatic1111 for SD) rather than working out of the box.

In a terminal? npx -y github:SolvoHQ/os-alt-cli chatgpt prints the ChatGPT comparison table including Open WebUI. how the CLI works →

Replaces these SaaS

ChatGPT · AI chat assistant (consumer UI)
Run `docker compose up` with the bundled Ollama+Open WebUI compose file from the project README. First-load creates the admin account; pull a model from inside the UI (Models → Pull → `llama3.1:8b`). ChatGPT history doesn't export cleanly — paste threads into a markdown file and use the Knowledge feature to make them searchable inside Open WebUI conversations.

README badges for the SaaS this replaces

Maintainers and forks: drop a badge in your README to link readers from the SaaS-comparison page back to your repo.

/chatgpt/

FAQ

Is Open WebUI actively maintained?

Yes — last commit 3d ago. The repository is alive (commit activity within the past 90 days).

What does Open WebUI cost to self-host?

Open WebUI is free and open source under BSD-3-Clause. Typical self-host VPS cost: $10 VPS for the UI; the model server adds the real cost — $0 on a workstation GPU, $200+/mo on cloud GPU.

Which SaaS does Open WebUI replace?

Open WebUI is listed as an open-source self-host alternative to: ChatGPT.