Chosen by developers. Ranked #1 on G2.

"I like LaunchDarkly's ability to seamlessly manage feature flags and control rollouts, enabling quick, safe deployments and A/B testing without requiring code changes or restarts. Its real-time toggling, comprehensive analytics, and role-based access controls make it invaluable for dynamic feature management and reducing risk during releases."

Togin Kiran K., Senior Software Development Engineer, Disney+ Hotstar

"You can work in a feature hidden behind a flag for an entire week or month, push the code changes/additions to production and it won't be available until you turn the flag ON, changes are accessible right at the moment. If something went wrong, you can still rollback the feature (or hide it) just by turning it back to OFF."

Oscar Fernando Z., Senior QA Engineer, Fortress Technology Solutions

"It is no understatement that LaunchDarkly has changed how we build, test, and deploy functionality. When we first demo'd it to our team, it "just worked." It was like magic. Our team can try new things, turn them on, and then rollback if necessary."

Nick V., Mid-Market Health, Wellness, and Fitness Company

"LaunchDarkly has made it possible to test new features in our testing environments for some people without affecting other people who are testing unrelated features!"

Arandu H., Software Developer, Uline

"The simplicity of using toggles makes it easy for me to switch on and off for my production deployment. Previously, we had to redeploy everything even for a single change, but using feature toggles has made it much easier and simpler to implement and integrate into production."

Rohan C., Vice President, BNY Mellon

"LaunchDarkly allows our teams to infer data from experiments and flag features across both web and native platforms. It has helped us selectively rollout new features and easily measure metrics to those roll outs."

Evan T., Technical Product Manager, NBCUniversal

"LaunchDarkly helps us safely roll out and experiment with AI and product features without requiring engineering deploys for every variation. It's been critical for running A/B tests, targeting cohorts, and validating impact quickly — all of which improves our team's velocity and decision-making."

Vincent L., Data Scientist, Small Business Company

"We replaced Google Optimize with LaunchDarkly for AB testing and it's been smooth. We also hide new features behind feature flags until they're ready to go live. This allows our code to be in production, even when it's incomplete. Once the feature is completed, we enable the feature flag and everything is live."

Thomas M., Mid-Market Company

"This tool enables us to make deployment changes rapidly by switching the toggles on and off. We absolutely love it. The entire process is simplified, integrates seamlessly with our code, and we have experienced zero bugs in production deployment."

Rohan C., Vice President, Machine Learning, BNY Mellon

"It's solving the feature flag management for us, and enables us to do A/B testing across the product. The management and control is very smooth, and we're running over 100+ flags at any given point."

Sivcan S., Staff Engineer, Postman