Deploy features. Not risks.

FlipFlag lets you ship code and control who sees what — without redeploying. Target users, run gradual rollouts, and roll back instantly.

Start for free View dashboard

No credit card requiredFree to useREST API included

Live Feature Control

Toggle flags below and watch the app update instantly.

Dark Mode

Enabled

New Checkout

Disabled

Beta Features

Disabled

Notifications

Enabled

Application View

This is what your users see — in real time.

Dashboard

You have 3 new alerts — view all

Analytics Overview

Weekly flag evaluations

Flags

99.9%

Uptime

<10ms

Latency

Everything you need

Built for developers who want simple, reliable feature flags without the complexity.

Instant toggles

Turn features on or off in real time without touching your codebase or triggering a redeploy.

User targeting

Roll out to specific users by ID, plan, country, or any custom attribute you define.

Multiple environments

Manage flags across Development and Production independently from a single dashboard.

Percentage rollouts

Gradually roll out features to 5%, 20%, or any percentage of your users with deterministic hashing.

Simple SDK

One API call. Send your user context and get back evaluated flags. Works with any language.

REST API

Manage flags programmatically. Integrate with your CI/CD pipeline or internal tooling.

How it works

Get set up in under 10 minutes.

Create a flag

Give it a name and set targeting rules — by user ID, attribute, or rollout percentage.

Integrate the SDK

Add one API call to your app. Pass user context and receive evaluated flag values.

Ship safely

Toggle features live without redeploying. Roll back instantly if something goes wrong.

Simple SDK

One call. All your flags.

Send your user context to the FlipFlag API and get back all evaluated flags in a single response. Works with any language or framework.

Context-aware evaluation
Deterministic rollout hashing
Works server-side and client-side

// Evaluate flags for a user
const result = await fetch("/api/sdk/flags", {
  method: "POST",
  body: JSON.stringify({
    userId: "user_123",
    attributes: {
      plan: "pro",
      country: "IN"
    }
  }))
})

// Use the evaluated flag
if (result.flags["new-checkout"]) {
  // show new checkout UI
}

Ready to ship safer?

Get started for free. No credit card, no setup fees — just feature flags that work.

Create free account Log in