Switchbox

Switchbox is a feature flag service designed to offer configuration management without unnecessary complexity. It addresses the need for efficient, privacy-focused feature flagging by delivering flag configurations as static JSON files from Cloudflare's edge, ensuring that applications can access and evaluate flags locally without relying on a live API for each read. This approach allows for sub-millisecond evaluation times and guarantees that feature flag checks remain operational even if the service provider's API is unavailable.

The platform emphasizes privacy and transparency in its architecture. User data never leaves the application, with no tracking or evaluation logs sent back to Switchbox, and the configuration files are accessible for inspection. Evaluations are performed by open-source SDKs, which are available for Python, JavaScript, and React. These SDKs are designed to have zero dependencies, relying only on the Python standard library or browser APIs, making integration lightweight and straightforward for developers. The configuration files can be retrieved using standard tools, and the system is designed to be fail-safe by ensuring that flag evaluations do not require round-trips to external servers.

Switchbox is intended for developers who need a reliable, fast, and privacy-conscious way to manage feature flags in their applications. Its delivery model, which avoids server-side reads for flag evaluation, contributes to cost efficiency. The service offers a free tier with unlimited evaluations, as well as paid plans, positioning itself as an affordable alternative to more complex solutions. By focusing on static delivery and local evaluation, Switchbox aims to provide a robust and predictable feature flagging experience.