Cloudflare launches Kitesurf, a specialized web browser built for AI agents

Cloudflare has released Kitesurf, a stateless web browser designed specifically for AI agents that runs entirely in V8 isolates on Cloudflare Workers without requiring Chromium. Unlike traditional browsers built for human users, Kitesurf eliminates tabs, extensions, and pixel-perfect rendering to focus on what AI models need: machine-readable content, low token overhead, scalability, and isolation against prompt injection attacks. The browser passes over 215,000 Web Platform Tests and is available as a free beta through Browser Run. It uses existing protocols like Chrome DevTools Protocol and works with existing clients like Puppeteer and Playwright with minimal adoption cost. Kitesurf achieves significantly lower memory and CPU usage compared to Chromium across various benchmarks, making it more economical for agent workloads, though wall-clock performance remains slower on some tasks.