Cloudflare launches Flagship, a feature flag service for Workers

Cloudflare has introduced Flagship, a feature flag platform that lets developers toggle functionality in production without redeploying. Flags are evaluated inside Workers via a native binding, with support for targeting rules using 11 comparison operators, percentage-based rollouts backed by consistent hashing, and variations that can be booleans, strings, numbers, or full JSON config blocks.

The service is compatible with OpenFeature, the CNCF’s vendor-neutral standard for flag management. Teams can use the @cloudflare/flagship SDK from Workers, Node.js, or the browser, and migrate from existing providers by changing a single configuration line. Flag definitions are managed through the Cloudflare dashboard and grouped into apps that mirror services.

The move places Cloudflare in direct competition with established feature flag vendors like LaunchDarkly, Split, and Statsig, while leveraging its edge network and Workers ecosystem as the differentiator. By delivering flag configs through the same KV-style infrastructure that powers Workers, Cloudflare is betting that low-latency, in-runtime evaluation will appeal to teams already building on its platform.