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Feature flags

Turn features on for some users without a deploy, and run experiments.

Changes in this category (RSS)

Side by side

ToolStarsLicenceTermsSelf-hostedLanguageLatestLast push
Unleash14kAGPL-3.0Open sourceYesTypeScriptv8.2.02026-10-06
GrowthBook8.5kOtherOpen coreYesTypeScriptv5.1.02026-10-06
Flagsmith6.6kBSD-3-ClauseOpen sourceYesPythonv2.280.02026-10-06
Flipt4.9kOtherSource availableYesGov2.13.12026-10-06
GO Feature Flag2.1kMITOpen sourceYesGov1.56.02026-10-06
FeatBit1.9kMITOpen sourceYesC#6.0.02026-09-30
flagd1kApache-2.0Open sourceYesGocore/v0.18.02026-10-06
Featurevisor812MITOpen sourceYesTypeScriptv3.11.02026-09-08

8 tools

Flagsmith

Flagsmith is an open-source feature flag platform with remote config, experimentation, and self-hosted or cloud deployment options.

Language
Python
Licence
BSD-3-Clause
Stars
6.6k
Latest
v2.280.0
Last push
2026-10-06
Flipt

Enterprise-ready, Git native feature management solution

Language
Go
Licence
Other
Stars
4.9k
Latest
v2.13.1
Last push
2026-10-06
GO Feature Flag

GO Feature Flag is a simple, complete and lightweight self-hosted cloud native feature flag solution 100% Open Source — built on OpenFeature 🎛️

Language
Go
Licence
MIT
Stars
2.1k
Latest
v1.56.0
Last push
2026-10-06
FeatBit

Enterprise-grade feature flag platform that you can self-host. Get started - free.

Language
C#
Licence
MIT
Stars
1.9k
Latest
6.0.0
Last push
2026-09-30

What these tools replace