{"data":{"slug":"open-webui","name":"Open WebUI","tagline":"Source-available Ollama/OpenAI chat UI — RAG, tools, multi-user","category":"agents","categoryName":"AI Agents","url":"https://openwebui.com","github":"https://github.com/open-webui/open-webui","pricing":"source-available","hook":"Open WebUI is the default self-host chat front-end for Ollama and OpenAI-compatible APIs — RAG, tools, and multi-user admin in one Docker-shaped product.","whatsGood":"Custom Open WebUI License (BSD-shaped + branding rules; open-webui/open-webui). Polished chat UI for local and remote models, document RAG, tools/functions, RBAC, and broad vector-store options. Docs at docs.openwebui.com. Massive adoption — ★153,481 on GitHub 2026-09-29.","theCatch":"Branding lock — removing “Open WebUI” marks is forbidden above ~50 end users / 30 days without written permission or enterprise license (not OSI MIT/Apache). Vs LibreChat (MIT Agents/MCP/skills orchestration UI): LibreChat leans Agents/MCP/skills; Open WebUI leans Ollama-first chat+RAG+admin. You still BYO models, GPU, and upgrade discipline.","verdict":"Source-available Ollama/OpenAI chat UI when polished local RAG chat beats building one — branding rules are the Catch vs LibreChat MIT.","addedAt":"2026-09-29","featured":false,"domain":"AI Agents","subSpecialty":"Agents","subcategory":"Personal Agents & Chat","tags":["web-ui","self-host","source-available","license-unclear","local-llm","rag","containers","active","fast-stars"],"capabilities":[],"surfaces":["Self-host"],"ecosystem":["Multi-platform"],"licenseModel":"Open-Core","githubStars":156120,"starsPerWeek":985,"access":"free","archived":false,"repo":{"createdAt":"2023-10-06","pushedAt":"2026-10-18","license":"NOASSERTION","archived":false,"checkedAt":"2026-10-19"}},"related":[{"slug":"claude-code","name":"Claude Code","tagline":"Terminal-first coding agent with deep repository context"},{"slug":"cursor","name":"Cursor","tagline":"The AI-first code editor that understands your codebase"},{"slug":"devin","name":"Devin","tagline":"Autonomous AI engineer for defined engineering tasks"},{"slug":"stagehand","name":"Stagehand","tagline":"AI-native browser automation that mixes code and natural language"},{"slug":"browser-use","name":"Browser Use","tagline":"Open-source framework for LLM-driven browser agents"}],"links":{"self":"/api/gems/open-webui","html":"/gems/open-webui","markdown":"/gems/open-webui.md","category":"/api/gems?category=agents","categoryPage":"/stacks/agents"}}