What is a feature flag what-is-a-feature-flag

Last update: Tue Mar 24 2026 00:00:00 GMT+0000 (Coordinated Universal Time)

A feature flag is a mechanism that lets you turn features of your application on or off at runtime — without redeploying code.

Feature flags decouple code deployment from feature availability. You can ship new code to production with the feature hidden behind a flag, then switch it on whenever you are ready — for all users, or for a targeted subset.

This separation significantly reduces risk. Developers can build and ship continuously with minimal disruption, while product teams retain full control over when and to whom a feature becomes visible.

NOTE

In Experience Rollouts, a feature flag is the most atomic unit of feature control. It can be used on its own to target a single feature, or combined with other flags in a feature group or release.

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