Cloudflare has published Kitesurf, its experimental browser engine for AI agents, as open-source software under the Apache 2.0 license. In a November 12 update, the company said developers can inspect the code, run it locally for development or deploy an instance to a Cloudflare account.
A browser engine built for agents
According to Cloudflare, Kitesurf parses HTML, applies CSS, runs page JavaScript and renders screenshots without a conventional browser container. It exposes the Chrome DevTools Protocol, offering a connection point for clients such as Puppeteer. The project repository contains the source and setup guidance.
This is an experimental engine, not a claim of full Chrome compatibility. Cloudflare says standards support, rendering fidelity and performance remain under active development. A team considering it should test its own sites and tasks rather than assuming that a page or automation script will behave identically in every browser.
Local development and hosted deployment differ
The company describes local development through Wrangler. Running an instance on Cloudflare requires Dynamic Workers, which it says are part of a paid Workers plan. Open-source code does not make that hosted infrastructure free, and this report does not recommend purchasing a plan.
Cloudflare also says Kitesurf does not include built-in authentication and advises protecting a deployment with an access layer. That matters for any service able to retrieve pages and execute browser actions: restrict who can reach it, what it can access and how its resources are used.
The project offers agent builders another implementation to inspect and evaluate, but we have not installed Kitesurf, tested its compatibility or independently benchmarked it.
Original reporting based on Cloudflare documentation; no independent deployment or benchmark test.
