21CTO

Jun 17, 2026 · Frontend Development

ArrowJS 1.0: The First UI Framework Built for AI Agents

ArrowJS 1.0, a sub‑5KB reactive UI library that requires no JSX or build step, adds an optional WebAssembly sandbox, async components, SSR and hydration, and has sparked lively community debate over its minimalist design, agent‑oriented goals, and differences from React and Vue.