OpenUI
generates structured UI output from LLM responses
COMPANY
Thesys Inc.
ADDED DATE
3/11/2026
CATEGORY
Creative & Content Tools
AI TYPE
ai_centered
AI ROLE
generates structured UI output from LLM responses
OpenUI is an open source framework that lets developers register their own React components and have language models respond using those components directly. A four-step pipeline handles system prompt generation, LLM response in a structured markup format called OpenUI Lang, and real-time rendering. It supports any LLM provider and AI framework, with native streaming and no arbitrary code execution.
Value Propositions
Fordevelopers building interactive interfaces
Whowant model replies rendered as interactive elements
OpenUImaps LLM output to registered component libraries
So they canship generative interfaces without writing custom parsers
Fordevelopers building interactive interfaces
Whowant model replies rendered as interactive elements
OpenUImaps LLM output to registered component libraries
So they canship generative interfaces without writing custom parsers
Features
component library registrationautomatic system prompt generationOpenUI Lang markupstreaming native renderingany LLM supportinteractive event handling