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What is CanaryGate?

CanaryGate is a feature flag platform for teams that need to release changes more safely, without depending on a redeploy to turn a feature on, off, or gradually roll it out in production.

With CanaryGate you can:

  • Turn features on or off instantly, without redeploying
  • Roll out changes gradually to an increasing percentage of users
  • Schedule automatic activations at a specific time
  • Receive real-time updates via SSE, so the SDK updates without polling
  • Organize flags by project and environment, with a complete audit trail

When it makes sense to use CanaryGate

Use CanaryGate when you want to:

  • Ship code before exposing the feature to everyone
  • Reduce rollout risk with phases like 5% -> 25% -> 100%
  • Revert a problematic change quickly without a new deploy
  • Separate behavior by environment, project, or organization
  • Measure the impact of a feature before opening it to your full user base

If you currently manage releases with env vars, long-lived branches, or manual deploys to activate features, CanaryGate replaces that flow with a more predictable operational control layer.

To get to your first production flag without getting stuck halfway through, follow this sequence:

  1. Prepare the dashboard setup: organization, project, environment, and API Key.
  2. Install and initialize the SDK in your application.
  3. Create your first flag and validate the behavior in code.

This flow avoids the most common onboarding problem: reaching the SDK without an API Key ready, or creating a flag without clarity on its type and environment.

Start here

InstallationQuickstartCreate First FlagSDK JavaScript

What you will learn in the first pages

Installation

Explains the requirements, where to get your API Key, and how to prepare your application to initialize the SDK correctly.

Quickstart

Shows the minimum integration needed to connect the SDK, load flags, and handle the basic success and failure path.

Create First Flag

Shows how to choose between a boolean flag and a rollout, how to name the flag, and how to validate the result in code.

Open source

CanaryGate is open source. The full source code is available on GitHub  — you can inspect the code, contribute, or self-host on your own infrastructure.

The hosted version at canarygate.io  is the managed offering: no infrastructure to maintain, with Free, Starter, and Pro plans.

If you prefer to self-host, see the docker-compose setup in the repository .

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Quickstart