Create reactive UI components without a build step or bundler using ArrowJS

This task can be performed using ArrowJS

ArrowJS: Type-safe, zero-build UI sandboxes—blazingly fast, tiny.

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ArrowJS

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ArrowJS is a tiny, type-safe reactive UI framework that runs without a build step and stays under 5kb. It isolates agent-generated logic in WebAssembly sandboxes while rendering full inline DOM, making it ideal for safe, flexible, agentic interfaces and fast, maintainable web frontends.

agentic frameworkwasm sandboxingreactive runtime

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What to expect from an ideal product

1. Drop ArrowJS directly into any HTML page with a simple script tag and start building reactive components instantly without webpack, vite, or any bundler setup
2. Write type-safe reactive code that updates the DOM automatically when data changes, using plain JavaScript syntax that works in any browser
3. Keep your entire application under 5kb so pages load fast while still getting full reactive functionality and component state management
4. Safely run untrusted or AI-generated code in isolated WebAssembly sandboxes that can't break your main application or access sensitive data
5. Build dynamic interfaces that respond to user interactions and data changes using inline DOM rendering without complex templating systems or virtual DOM overhead

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