Launch Features Without Risk

Target users, roll out gradually,
and turn off features instantly if something goes wrong.

Setup takes 10 minutes. No credit card needed.

USE COUPON CODE: NODE25

See feature flags in action

ConfigCat.js

const client = configcat.getClient("#SDK-KEY#");
const darkMode = await client.getValueAsync("darkMode", false);
const salesMode = await client.getValueAsync("salesMode", false);
const snowEnabled = await client.getValueAsync("snowEnabled", false);

if (darkMode) {
  enableDarkTheme();
}
if (salesMode) {
  showSalesBanner()
}
if (snowEnabled) {
  startSnowAnimation();
}

All Feature Flags

Dark mode

Sales mode

Holiday mode

Launch My First Feature Flag

Forever Free Plan. No credit card required.

Why us?

Simplicity

Ship faster, sleep better

Be live in minutes, no training needed

Roll out & roll back instantly

Security & Privacy

We never collect your users' data

Flags are evaluated on the client side

Full control for compliance & security

Fair & Transparent Pricing

Start free, all features included

Predictable costs, no hidden fees

Scales with you as you grow

No vendor lock-in

Export anytime, take your data with you

OpenFeature support

Works with the tools you already love

Simple Pricing

YOUR COUPON FOR 25% OFF

NODE25

Free

Forever free

10 Feature Flags
2 Environments
2 Products
5M config JSON downloads
Unlimited seats
99% uptime SLA

Pro

$110 $82 /mo

100 Feature Flags
3 Environments
3 Products
25M config JSON downloads
100 GB traffic
99.9% uptime SLA

Try Pro

Smart

$325 $244 /mo

Unlimited Feature Flags
Unlimited Environments
10 Products
250M config JSON downloads
1 TB traffic
99.95% uptime SLA

Try Smart

Enterprise

$900 $675 /mo

Unlimited everything
1B config JSON downloads
4 TB traffic
Premium SLA (99.99%)

Try Enterprise

Dedicated

$4500 $3375 /mo

Private cloud / On-prem
Unlimited resources
6B+ config JSON downloads
24 TB traffic
Premium SLA (99.99%)

See what others say about ConfigCat

Sindri Guðmundsson

Software Developer at Andes

"Meets all our requirements and then some. We evaluated and eventually chose ConfigCat over one of the larger players in the feature flagging world."

4.7/5 rating on G2 Crowd

Will Gittoes

VP Engineering

"ConfigCat is better and cheaper than LaunchDarkly. The ConfigCat folks have been very helpful and friendly, and dealing with our various support requests."