Unleash is a self-hosted tool that lets software teams switch new features on or off for chosen users without redeploying their app. It is aimed at developers and product teams who want to roll out changes gradually.
8.5kActiveIn your browserMITOpen coreFor developers
GrowthBook is a platform for turning product features on or off for selected users and for running A/B tests to see which version works better. It is aimed at product and engineering teams that want to run experiments on their own servers or in the cloud.
6.6kActiveBSD-3-ClauseOpen coreRuns on your own server
Flagsmith is a platform that lets software teams turn features on or off without deploying new code, and run A/B tests. It is aimed at developers and product teams who release software.
Runs on your own server · GitHub
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What people still miss here, and wish existed. Upvote what matters to you.
Planning something for feature flags? See what exists first, so you can reuse parts or explain what's different. Paste this into any AI assistant:
Read the list of open-source alternatives at https://opensourceeverything.org/data/groups/feature-flags.json. Compare it with my project or idea below. Tell me which projects overlap, what I could reuse instead of rewriting, and what mine does that none of them do.
My project or idea:
Here is a list of open-source alternatives to LaunchDarkly (turn app features on and off safely), from Open Source Everything (CC BY-SA 4.0):
- Unleash (AGPL-3.0, https://github.com/Unleash/unleash; replaces fully): Unleash is a self-hosted tool that lets software teams switch new features on or off for chosen users without redeploying their app. It is aimed at developers and product teams who want to roll out changes gradually.
- GrowthBook (MIT, https://github.com/growthbook/growthbook; replaces fully): GrowthBook is a platform for turning product features on or off for selected users and for running A/B tests to see which version works better. It is aimed at product and engineering teams that want to run experiments on their own servers or in the cloud.
- FlagSmith (BSD-3-Clause, https://github.com/Flagsmith/flagsmith; replaces fully): Flagsmith is a platform that lets software teams turn features on or off without deploying new code, and run A/B tests. It is aimed at developers and product teams who release software.
Compare it with my project or idea below. Tell me which projects overlap, what I could reuse instead of rewriting, and what mine does that none of them do.
My project or idea:
A project or closed app missing from this list, or a mistake on it? These open a short form on GitHub, and a mod reviews it. To say what a project can't do, use What's missing.
