Build less. Make more.

Feature Flags for your Next.js applications

Key Facts

HappyKit is a feature flagging service for your Next.js applications.

The @happykit/flags package integrates with a single React hook. It works with all the different rendering strategies, like SSR, SSG, ISR and even hybrid approaches.

HappyKit supports dynamic rules, A/B Testing, can be used as a Kill Switch or used to gradually roll your new features out to your visitors.

It evaluates millions of feature flags a day.

HappyKit is ultra fast as it's built on Cloudflare Workers. This also makes it extremely robust. HappyKit is up if Cloudflare is up.

Introducing HappyKit

Building applications with Next.js is fun.

If you've ever built something with Next.js you might have been blown away by its simplicity. I certainly was.

But as you get closer to release, something becomes apparent. There are questions you're not able to answer: How do you release a feature without redeploying? How can you hide a feature quickly in case something goes wrong? Which marketing copy converts better? Can you roll out a feature gradually?

Now the fun stops.

Next.js is great for building applications, but there's a whole piece missing as you get closer to production. HappyKit wants to be that piece.

Your companion to run Next.js in production — with confidence.

So the fun can continue.

Who's behind HappyKit?

Hi, I'm Dominik. While working with Next.js, I realized that Next.js is enabling a paradigm shift. The frontend and the backend are moving closer together. This unlocks a completely new category of tightly integrated services.

But existing tools haven't noticed.

They still live in a world where frontend and backend are miles apart. Segregated by location of execution.

So I set out to build drastically better tools. To take advantage of these new capabilities.

This journey has led me to create HappyKit Flags, a feature flagging service for your Next.js applications. Sign up below to get started for free. I hope you'll enjoy it as much as I do.

— Dominik

Curious? Sign up for free and create your first flag.

HappyKit Flags is serving millions of feature flags per day and I'd love for it to serve your feature flags as well! The setup is dead-simple and using HappyKit is free for private projects. HappyKit is free for personal use.

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