Arrow JavaScript, Reactivity Without the Framework

In plain words

Arrow JavaScript is a ~2kb library that enables developers to build reactive user interfaces using native JavaScript, without requiring a full framework. It allows reactive state management and interface updates in vanilla JavaScript projects. The library is designed for developers seeking reactivity features while keeping bundle size minimal and avoiding framework overhead.

written from the facts on this page · September 2026

From the sources

A tiny, blazing-fast, zero-dependency, type-safe framework. No build step required. Isolate agent-generated UI inside WebAssembly sandboxes while rendering full inline DOM directly in your app — no iframes, no pre-defined components.

A tiny, blazing-fast, zero dependency, type-safe framework with no build step required. ArrowJS ships with the ability to isolate component logic inside Web Assembly sandboxes while rendering full inline DOM directly in your app — no iframes, no pre-defined UI components. Use it to build fast, maintainable applications — or to ship safe, flexible, on-demand UIs for your users without having to plan components in advance. Arrow is a reactive UI framework built around JavaScript primitives: Modules, functions, and template literals. Arrow is just TypeScript, so your coding agent already knows how to use it really well. Unlike other major frameworks, there is no "idomatic" way to use Arrow…from arrow-js.com

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