LaunchDarkly vs GrowthBook

Side-by-side from the Top 11 ranking of The 11 Best A/B Testing Tools. Last verified June 13, 2026.

The short answer

LaunchDarkly ranks higher on Top 11 (#9 vs #11) for Growth teams running experiments. The top feature management platform with strong, integrated server-side experimentation.

At a glance

LaunchDarklyGrowthBook
Top 11 rank#9 / The 11 Best A/B Testing Tools#11 / The 11 Best A/B Testing Tools
Score (out of 9.4)7.77.4
Best forFeature management & server-side testingOpen-source testing on your data warehouse
Pricing$$$ ($250/mo to custom)$ (Free to custom)
HQOakland, USASan Francisco, USA
Founded20142020

LaunchDarkly

The top feature management platform with strong, integrated server-side experimentation.

launchdarkly.com

See full entry in The 11 Best A/B Testing Tools

GrowthBook

An open-source tool that runs on your data warehouse, giving you full data ownership.

www.growthbook.io

See full entry in The 11 Best A/B Testing Tools

Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.