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GrowthBook

★ 7k

Feature flags plus a real A/B testing engine that analyzes experiments against your own data warehouse.

GrowthBook does the job of LaunchDarkly, self-hosted. It is MIT-licensed, so you can do essentially what you like with it, and it installs in about one command. LaunchDarkly bills $20/mo for it. 7k stars on GitHub.

Open-source replacement for LaunchDarkly.

Licence
MIT
Self-hosting
Easy
The paid one costs
$20/mo
GitHub stars
7k
view the code →official site →

Is it actually a replacement?

We have written a verdict on what it replaces — what you lose, and why people still pay:

How GrowthBook runs

Where it runs

GrowthBook runs on your server.

What setup takes

not verified by us yet — check the repo README.

GrowthBook questions

Is GrowthBook open source?

Yes — it is released under MIT.

Can GrowthBook replace LaunchDarkly?

Our verdict on LaunchDarkly is YES. OpenCode (192k stars), OpenHands (83k stars), Cline (65k stars) are mature open-source replacements for LaunchDarkly — self-host in one command and stop paying $100/mo.

Can I self-host GrowthBook?

Yes — we rate it easy to self-host, and it runs on your server.

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