A set of beautifully-designed, accessible components and a code distribution platform. Works with your favorite frameworks. Open Source. Open Code.

Lexical is an extensible text editor framework that provides excellent reliability, accessibility and performance.

Code Editor for the AI Agents Era - Run an army of Claude Code, Codex, etc. on your machine

From a goal to a task DAG, automatically. TypeScript-native multi-agent orchestration with MCP and live tracing. Three runtime dependencies.

Keep searching, reading webpages, reasoning until it finds the answer (or exceeding the token budget)

Expect tests your agent's code in a real browser

Fast Datagrid widget for the Jupyter Notebook and JupyterLab

An open source ChatGPT UI.