This task can be performed using ArrowJS
ArrowJS: Type-safe, zero-build UI sandboxes—blazingly fast, tiny.
Best product for this task
ArrowJS
dev-tools
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.
What to expect from an ideal product
- ArrowJS runs untrusted code inside WebAssembly sandboxes that completely isolate dangerous scripts from your main application and browser environment
- The framework keeps malicious code separated while still letting it render real DOM elements, so you get full functionality without security risks
- Type-safe execution means untrusted JavaScript gets validated before running, catching potentially harmful operations before they can damage your system
- Agent-generated logic stays contained in its own sandbox bubble, preventing code from accessing sensitive data, cookies, or other parts of your website
- The 5kb lightweight design loads fast and creates secure boundaries without the bloat of traditional security solutions or complex build processes
