Open WebUI
Free tierThe freedom AI stack — run any model, on your own terms, without compromise.
Free tier available·All audiences·Powered by Any (Ollama, OpenAI, Anthropic, or any OpenAI-compatible endpoint)·API available·Open source
Key strengths
Fully self-hosted with complete data sovereigntyConnect to any model — Ollama, OpenAI, Anthropic, or any compatible APIExtensible via Python pipelines and custom functionsThriving open-source community with 427K+ members and 141K+ GitHub starsEnterprise-ready with SSO, RBAC, and audit logs
Free tier + paid plans
Founded 2024
Self-hostable
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- Local LLM development: Use Open WebUI as a polished frontend for Ollama-served models during development and testing, with support for multi-turn chat, system prompts, and parameter tuning.
- RAG pipeline prototyping: Build and iterate on Retrieval-Augmented Generation workflows using Python functions and the built-in document ingestion tooling.
- Multi-provider API routing: Configure a single Open WebUI instance to route conversations across multiple model backends (local, OpenAI, Anthropic) for cost and latency optimization.
- Enterprise AI deployment: Deploy with SSO/OIDC, RBAC, and audit logging to meet compliance requirements in regulated industries (finance, healthcare, legal).
- Custom agent tooling: Leverage the Python pipeline framework to create tool-calling agents with web search, code execution, and external API integrations.
- Community-powered model management: Distribute and install community-built prompts, model personas, and functions across an organization via the Open WebUI community hub.