can i fork it?

Head-to-Head Comparison · Alternative to LaunchDarkly · 🛠️ dev tools

LaunchDarkly vs GrowthBook

Open-source feature flagging and A/B testing platform. Here is how GrowthBook ($0/mo open source) stacks up against LaunchDarkly ($10/mo) across cost, hosting, data privacy, and real-world trade-offs.

Open-Source Alternative

GrowthBook

$0.00/mo · Open Source

LaunchDarkly vs GrowthBook Specification Matrix

facts verified 2026-11-04

DimensionLaunchDarkly (Paid)GrowthBook (Replacement)
Monthly Price$10 / mo$0 / mo
1-Year Cost (1 seat)$120 / yr$0 / yr (Save $120)
1-Year Cost (5 seats)$600 / yr$0 / yr (Save $600)
1-Year Cost (10 seats)$1,200 / yr$0 / yr (Save $1,200)
Source & LicenseProprietary SaaSopen source Open Source
Where It RunsVendor CloudSelf-host (your server)
PlatformsWeb / Cloud
webself-hosteddocker to self-host
GitHub Stars—★ 8.6k (active nov 2026)

Deep Dive: Switching from LaunchDarkly to GrowthBook

Trade-offs, installation & data architecture

The Catch vs LaunchDarkly

What you trade away

Requires self-hosting setup, updates, and server maintenance compared to managed LaunchDarkly.

Installation

How to deploy GrowthBook

Clone https://github.com/growthbook/growthbook or deploy with Docker Compose

Day-2 Operations & Setup

What it takes to run

Deploy via Docker or binary release from GitHub and configure environment variables.

Data Ownership

Where your data lives

All application data and configuration live on your own server or local database.

Build vs Fork Verdict: YES (the core loop fits in a weekend)

Why fork GrowthBook instead of vibe-coding a LaunchDarkly clone?

Instead of paying recurring SaaS fees for LaunchDarkly or rebuilding it from scratch, deploy one of the 5 battle-tested open-source alternatives like GrowthBook or FlagSmith.

LaunchDarkly vs GrowthBook FAQ

Is GrowthBook a good free alternative to LaunchDarkly?+

Yes. GrowthBook is a verified open-source (Open Source) replacement for LaunchDarkly. Open-source feature flagging and A/B testing platform.

What is the catch when switching from LaunchDarkly to GrowthBook?+

Requires self-hosting setup, updates, and server maintenance compared to managed LaunchDarkly.

How much do you save switching from LaunchDarkly to GrowthBook?+

LaunchDarkly costs $10/mo ($120/yr) per seat, whereas GrowthBook is $0/mo. Switching saves $120/yr for a solo user, $600/yr for a 5-person team, and $1,200/yr for a 10-person team.

How do I install or self-host GrowthBook instead of LaunchDarkly?+

Install: Clone https://github.com/growthbook/growthbook or deploy with Docker Compose. Setup: Deploy via Docker or binary release from GitHub and configure environment variables.

Other Free Alternatives to LaunchDarkly

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