Cloudflare Open-Sources Kitesurf: A Chromium-Free Headless Browser Built for Agents
alexcovo_eth · x · 2026-11-14
Cloudflare has open-sourced Kitesurf, a browser built for agents. It is a stateless headless browser written in Rust and WebAssembly, running entirely on Cloudflare Workers with no Chromium engine, process, or container behind it.
Key points:
- Speaks the Chrome DevTools Protocol, so existing DevTools tooling can drive it — inspect the DOM, console, and network, and grab screenshots, PDFs, or rendered HTML.
- Efficiency: uses up to 7x less CPU and RAM than Chrome; the tradeoffs are being 2x slower and unable to bypass CAPTCHAs.
Well-suited for lightweight tasks — screenshots, light scraping, web search — complementing Chrome in agent workflows.
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