LaunchDarkly
ELI5 — The Vibe Check
LaunchDarkly is the king of feature flags as a service. Toggle features on/off for specific users, segments, or percentages without deploying. Want to show a new checkout to 10% of premium users? LaunchDarkly. It decouples deployment from release — ship code whenever, reveal features whenever.
Real Talk
LaunchDarkly is a feature management platform providing feature flags, experimentation, and progressive delivery. It supports targeting rules, percentage rollouts, A/B testing, and multivariate flags with real-time evaluation across server-side and client-side SDKs.
When You'll Hear This
"LaunchDarkly lets us turn features on for beta testers without a deploy." / "We wrapped the new pricing engine in a LaunchDarkly flag for gradual rollout."
Related Terms
A/B Testing
Showing half your users version A and half version B to see which one performs better. Blue button vs green button? Short headline vs long headline?
Canary Deployment
Canary deployment is releasing your new code to a tiny percentage of users first to see if it explodes.
Progressive Delivery
Progressive Delivery means rolling out changes gradually instead of flipping a switch for everyone at once.