#1 solutionFeature flags for Javascript

Streamline your Javascript development and launch updates confidently with feature flags. Tggl lets you deploy as soon as your code is ready and release features at your own pace.

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Javascript SDKStart building in no time using our Javascript SDK.

With Tggl, you can quickly adopt best practices and implement feature flags in your Javascript app with minimal code using our SDK.

1. Install the SDK

npm i tggl-client

2. Create the client

import { TgglClient } from 'tggl-client'
 
const client = new TgglClient('YOUR_API_KEY')

3. Start using feature flags

const flags = await client.evalContext({
  userId: 'foo',
  email: 'foo@gmail.com',
})
 
if (flags.isActive('my-feature')) {
  // ...
}

You can work with the API or choose to do local flag evaluation to evaluate millions of flags per second. The SDK also supports live configuration updates.

Fully typed with Typescript

Types are automatically pulled from the API and are available in your IDE. Nor more guessing what the return type of a flag is, all typos are picked-up by your IDE and CI build process.

Javascript SDK documentation

Best in class UIEasy to use interface, even for non-technical users

Empower product and marketing teams to experiment within safe boundaries set by your engineering team.

Your app is instantly updated when a flag is updated, no need to write code and deploy the new version.

PerformanceAPI or local flag evaluation

A single API call to evaluate all flags

Tggl lets you evaluate all flags in a single round trip to our servers using our robust and highly performant API.

You can also evaluates thousands of users at once by batching all your calls in a single HTTP request.

Read the documentation

Local flags evaluation on your backend

Evaluate millions of flags a second locally without making a single API call. You data never sees our servers and you can evaluate flags a millisecond.

As resilient as it can be, if the Tggl API ever goes down, you can still evaluate flags locally based on the last successful sync.

Read the documentation

What our clients have to say about us

At Yuno, we were using Amplitude for product analytics and needed a tool to conduct A/B tests. We were able to integrate Tggl extremely fast and could get our first results in days. As a product manager, Tggl had a great impact on the way we work with the tech team.

Gautier Schaffter, Senior Product Manager @ Yuno

We value privacy and security

GDPR compliant

Tggl's robust data handling practices ensure GDPR compliance, safeguarding user privacy and data security.

Data stored in EU

Tggl securely stores data within the European Union, adhering to stringent data protection standards and regulations.

Your data never reaches our servers

Use the open source Tggl proxy on your own infrastructure to ensure that your data never leaves your servers.

Two-factor authentication

Enable two-factor authentication (2FA) to greatly improve your security posture on Tggl!

Custom roles

Assign granular access permissions to ensure the right people have the right access.

Flag history

Precisely track what changes were made, who made them, and easily rollback to a previous configuration.

Begin using feature flags in Javascript

You can start using Tggl for free and see results in less than 3 minutes. The platform provides extensive documentation to guide you through the initial setup, and its Javascript SDK simplifies the integration process. With Tggl, you can quickly implement feature flags and begin managing your deployments without a steep learning curve.

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Compare with other solutions

For a detailed breakdown of feature flag solutions for Javascript, check out our comparison guide. It offers an extensive look at the features, ease of use, and pricing of different tools, helping you make an informed decision based on your specific needs.

Read our comparison