Ship features
without fear
Deploy with confidence using intelligent feature flags. Control releases, test in production, and roll back instantly.
✨ No credit card required • Setup in 5 minutes
Why development teams choose FlagFish
Release features independently from deployments and gain complete control over your user experience.
Zero-Downtime Deployments
Release features instantly without code deployments. Toggle functionality on or off in real-time across all environments.
Granular User Targeting
Progressive rollouts to specific users, segments, or percentages. Perfect for A/B testing and gradual releases.
Instant Kill Switch
Deactivate problematic features immediately without emergency deploys. Protect your users and maintain uptime.
From integration to production
Our streamlined workflow gets you up and running fast.
Create your flag
Name it, set default states, and configure targeting rules in seconds.
Integrate the SDK
Install our lightweight SDK with a single command — React, Node.js, and more.
Define your audience
Target specific users, segments, or environments with sophisticated rules.
Control in real-time
Toggle features on or off instantly. No deploys, no waiting, no risk.
# Install in one line $ npm install @flagfish/react import { useFlag } from '@flagfish/react'; function Checkout() { // returns live flag value, no redeploy const newFlow = useFlag('checkout-redesign', false); return newFlow ? <CheckoutV2 /> : <CheckoutV1 />; }
Beautiful dashboard, powerful features
Manage your entire feature flag lifecycle from an intuitive interface. Create flags, configure targeting rules, monitor usage, and analyze impact — all in real-time.
Simple, transparent pricing
For small teams shipping their first flags.
For growing teams running experiments at scale.
Questions about features or pricing? Contact our team →