// Build agent apps
openui
Open standard for generative UI.
Open source Maintained Dual-use For developers
IN ONE PARAGRAPH
openui is open standard for generative UI.
Good for: Developers and teams who want to build agent apps.
01How to start
- 1Read the official quick-start (link above).
- 2Install or sign up as the official guide describes.
- 3Try it on a small example before wiring it into a project.
02Alternatives & comparison
Compare side by side → langchain The agent engineering platform. ★ 148k autogen A programming framework for agentic AI ★ 62k crewAI Framework for orchestrating role-playing, autonomous AI agents. By fostering collaborative intelligence, CrewAI empowers agents to work together seamlessly, tackling complex tasks. ★ 60k llama_index LlamaIndex is the document processing platform for AI ★ 53k langgraph Build resilient agents. ★ 44k
Versions, why it is listed, for AI to read
Popularity evidence (third-party snapshots)
- GitHub stars：10,600 · whatstrending.ai 2026-10-10
- GitHub stars：9,986 · repos.ecosyste.ms 2026-10-10
- GitHub stars：9,986 · repos.ecosyste.ms 2026-10-12
- GitHub stars：10,806 · repos.ecosyste.ms 2026-10-13
- GitHub stars：10,806 · repos.ecosyste.ms 2026-10-14
- GitHub stars：10,806 · repos.ecosyste.ms 2026-10-15
- GitHub stars：10,806 · repos.ecosyste.ms 2026-10-16
- GitHub stars：10,806 · repos.ecosyste.ms 2026-10-19
- GitHub stars：10,806 · repos.ecosyste.ms 2026-10-20
- GitHub stars：12,603 · repos.ecosyste.ms 2026-10-21
- GitHub stars：12,603 · repos.ecosyste.ms 2026-10-22
For AI agents
- Interfaces：its own app or website
- Machine-readable record：/api/v1/software/openui.json · llms.txt
- Added 2026-10-10 · updated 2026-10-22