Launch features without deploys
Define features in the dashboard and set per-environment overrides. Your app reads values through the SDK when you toggle. No redeploy.
How it works
Create a feature, wire the SDK, flip it live.
- 1.
Create features
Define boolean and typed features in the dashboard. Set defaults and per-environment overrides.
- 2.
Install the SDK
Add featuretoggle-sdk-typescript to your app. One API key per environment. Live SSE updates, or fetch on demand.
- 3.
Toggle without deploys
Change feature values in the dashboard. Your app picks up updates via SSE, tab focus, or refresh.
Core capabilities
Boolean and typed features
Boolean, string, number, and JSON features with independent enabled and value states.
Per-environment overrides
Sparse overrides per environment. Production can differ from development without duplicating config.
Deprecated lifecycle
Soft-deprecate features with optional replacement keys. Overrides lock while you migrate.
npm SDK
Live SSE updates for SPAs. A server entry for Node.js. Same read API, full TypeScript types.
Start toggling features today
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