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Description
Inspect & override feature flags in real time. Any page, any environment. No API keys or dashboard access required. See and override every feature flag active on the current page — in any environment, with zero configuration. FeaturePeep reads flags directly from your browser's existing SDK traffic. No API keys to paste, no changes to your codebase, no dashboard access required. Just open the extension on any page and see what's running. FEATURES - Zero config — works with what's already on the page, no setup required - See every active flag instantly, on any environment (local, staging, production) - Override flags locally — changes stay in your browser and never affect shared environments or break CI - Overrides persist across page reloads and survive re-polls automatically - Privacy-first — no data collected, no external network requests, everything stays on your device SUPPORTED PROVIDERS - LaunchDarkly (streaming + polling; native SDK and OpenFeature adapter both supported) - PostHog (boolean, string, and number flags; PostHog Cloud) - OpenFeature / OFREP (any compliant provider works automatically) - Optimizely (Feature Experimentation, v6+; datafile rewrite and SDK patch both supported) - Flipt (boolean flags via client-side snapshot polling; variant flags coming soon) PERFECT FOR - Engineers verifying flag state in production without needing dashboard access - QA testers checking which flags are active before smoke-testing a feature - Anyone asking "is that flag on in prod?" without wanting to disturb a shared environment PRIVACY FeaturePeep collects no user data. It does not make network requests of its own, transmit anything to external servers, or communicate with provider APIs. All flag data is read locally from your browser's existing SDK traffic. Overrides are stored in your browser's local extension storage and never leave your device. Full details: https://featurepeep.com/privacy