LaunchDarkly → Unleash
mediumUnleash is the open-source LaunchDarkly. Free to self-host, same feature flag concepts, much cheaper at scale.
Docker Compose or Unleash Cloud.
docker run -d --name unleash -p 4242:4242 unleashorg/unleash-server:latest
Manually recreate your LaunchDarkly feature flags in Unleash. Match flag keys exactly to minimize code changes.
npm uninstall launchdarkly-node-client-sdk && npm install unleash-client
LaunchDarkly: client.variation('flag', context, false). Unleash: client.isEnabled('flag', context, false). Map user attributes to Unleash context.
Verify gradual rollout, user targeting, and kill switches work correctly.
What this migration involves
Moving from LaunchDarkly to Unleash is rated medium and takes about 4-8h on a typical project. The guide breaks it into 5 steps, 2 of which ship with runnable commands and 1 with a verification check. On pricing, LaunchDarkly is paid and Unleash is open-source with a free plan to test the move.
FAQ
How long does migrating from LaunchDarkly to Unleash take?
Around 4-8h for a typical project — 5 steps, difficulty rated medium, 2 of them with copy-paste commands.
Is moving from LaunchDarkly to Unleash reversible?
No reverse guide is tracked yet, so treat this as a one-way move and keep a full export of your LaunchDarkly data before you start.
What does Unleash cost compared to LaunchDarkly?
LaunchDarkly: paid from $10/mo. Unleash: open-source from $0/mo, free plan available.