# Jane Street Open-Sources Bonsai, a UI Library for OCaml

Jane Street, the trading firm known for its use of OCaml, has released Bonsai, a UI library designed for building interactive web applications in a functional style. The library aims to bring robust, composable state management to OCaml developers. Its open-source release could strengthen the ecosystem for functional programming in web development.

**Importance:** 2/5

## Sources

### Technology
- [Hacker News](https://github.com/janestreet/bonsai) — Mon, 03 Aug 2026 08:29:57 +0000