Cloudflare Launches Kitesurf, a Cloud Browser Built for AI Agents

Cloudflare launched Kitesurf, a cloud-hosted browser designed specifically for AI agents instead of people. The product is aimed at developers building software that can navigate websites, fill out forms, and complete browser-based tasks without creating browser infrastructure from scratch.

The launch positions Cloudflare in the broader shift from AI chatbots that answer questions to AI agents that can take action on users’ behalf. For those agents, the browser becomes a key interface for using the web like a human would.

Kitesurf is not being pitched as a Chrome alternative for consumers. Cloudflare says a browser built for AI agents does not need to prioritize visual elements such as themes, tabs, or browser extensions.

Instead, the company says agent-focused browsers need to handle context windows, performance, token costs, and scalability. They also face a different security model, including risks such as prompt injection attacks.

Cloudflare says Kitesurf can help AI agents use the web more efficiently while using less computing power than Chromium for common automation work. The company specifically says Kitesurf is more efficient in CPU and memory consumption for agentic tasks such as screenshots and HTML extraction.

Kitesurf is available for free while in beta in Browser Run, which lets developers programmatically control and interact with headless browser instances on Cloudflare’s network. Cloudflare says it decided to build Kitesurf 12 weeks before launch, and that it runs entirely on Workers, the company’s serverless platform.

Cloudflare built Kitesurf using several technologies, including Blitz, Stylo, and Boa JS, with everything else running inside Cloudflare Workers. The company also credited the open source Rust headless engine Obscura for inspiring Kitesurf, saying its first proof of concept was a port of Obscura to Workers.

Cloudflare says Kitesurf already passes around 215,000+ web platform tests and is adding hundreds more passing tests each week. The company also says the browser correctly renders pages such as TodoMVC, Wikipedia, Hacker News, the Cloudflare Blog, and much of the Cloudflare dashboard.