Feature Flags for Modern Apps
Control which features are visible to your users in real-time. No code changes, no redeployments. Just flip a switch and your app responds instantly.
What Are Feature Flags?
Feature flags (also known as feature toggles) are a software development technique that allows you to enable or disable features in your application without deploying new code. They give you control over what users see and when they see it.
With Switchyy, implementing feature flags is simple. Create a project, set your modes, and your app automatically responds to changes in real-time via our SSE (Server-Sent Events) connection.
Instant Updates
Changes propagate to all connected clients in milliseconds via SSE.
Safe Rollouts
Test features with specific users before rolling out to everyone.
Kill Switch Ready
Instantly disable problematic features without emergency deploys.
Any Tech Stack
Works with React, Vue, Angular, plain HTML, and mobile apps.
Common Use Cases
Gradual Feature Rollout
Release new features to a small percentage of users first, then gradually increase as you gain confidence.
A/B Testing
Show different versions of a feature to different user groups and measure which performs better.
Emergency Kill Switch
Instantly disable a feature that's causing issues without rolling back your entire deployment.
Beta Programs
Give early access to new features for beta testers while keeping them hidden from regular users.
Ready to Implement Feature Flags?
Get started in under 5 minutes. No credit card required.
Start Using Feature Flags