Ship features with confidence
Control feature rollouts with simple toggles or gradual percentage-based releases. Perfect for A/B testing, canary deployments, and safe feature launches.
{
"key": "new_checkout_v2",
"enabled": true,
"flagType": "percentage",
"percentage": 25
}Everything you need for feature management
Simple, powerful feature flags that work with any stack. No complex setup required.
Toggle Flags
Simple on/off switches for features. Enable or disable features instantly across your entire user base.
Percentage Rollouts
Gradually release features to a percentage of users. Perfect for canary deployments and A/B testing.
Consistent Hashing
Same user always gets the same result. Use any identifier for deterministic flag evaluation.
Instant Updates
Changes take effect immediately. No deployments, no cache invalidation, no waiting.
Simple API
RESTful API that works with any language. Single endpoint for flag evaluation, no SDK required.
Safe Rollbacks
Something wrong? Disable a flag instantly to roll back without deploying code.
How it works
Get started in minutes with our simple API
Create a flag
Create a feature flag in your dashboard. Choose between a simple toggle or percentage-based rollout.
Check the flag
Call our API from your app to check if a feature is enabled for a specific user.
Roll out safely
Toggle features on/off instantly or gradually increase the rollout percentage.
const response = await fetch(
`https://loggy.dev/api/feature-flags/evaluate/${userId}/new_checkout`
);
const { enabled } = await response.json();
if (enabled) {
renderNewCheckout();
} else {
renderOldCheckout();
}Start free, scale as you grow
Feature flags are included in all Loggy plans
- 5 feature flags
- Toggle on/off
- 10 feature flags
- Percentage rollouts
- Unlimited flags
- Percentage rollouts