Best Open-source Feature Flags tools

Explore curated open-source tools in the Feature Flags category. Compare technologies, see alternatives, and find the right solution for your workflow.

10+ projects · Page 1 of 1

GrowthBook logo

GrowthBook

Open Source Feature Flagging and A/B Testing Platform

Stars
7,608
License
Last commit
17 days ago
TypeScriptActive
FeatureHub logo

FeatureHub

Cloud Native feature flags, A/B testing, and remote configuration platform

Stars
357
License
Last commit
17 days ago
DartActive
GO Feature Flag logo

GO Feature Flag

Lightweight, multi-language feature flag service with relay proxy

Stars
1,979
License
MIT
Last commit
17 days ago
GoActive
Flipt logo

Flipt

Git-native feature management platform for modern development teams

Stars
4,763
License
Last commit
17 days ago
GoActive
Flagsmith logo

Flagsmith

Open-Source Feature Flagging and Remote Config Platform

Stars
6,289
License
BSD-3-Clause
Last commit
17 days ago
PythonActive
Featurevisor logo

Featurevisor

Git-based feature flags and experimentation for developers

Stars
795
License
MIT
Last commit
18 days ago
TypeScriptActive
Unleash logo

Unleash

Feature flag platform enabling safe, incremental releases

Stars
13,339
License
Apache-2.0
Last commit
18 days ago
TypeScriptActive
FeatBit logo

FeatBit

Self-hosted feature flag platform for safe deployments

Stars
1,787
License
MIT
Last commit
19 days ago
C#Active
Bucketeer logo

Bucketeer

Feature flag management and A/B testing platform

Stars
470
License
Apache-2.0
Last commit
19 days ago
GoActive
Togglz logo

Togglz

Dynamic runtime feature toggles for Java applications

Stars
1,014
License
Apache-2.0
Last commit
19 days ago
JavaActive
Flagger logo

Flagger

Progressive delivery automation for Kubernetes with canary deployments

Stars
5,301
License
Apache-2.0
Last commit
23 days ago
GoActive
Flagr logo

Flagr

Deliver targeted experiences with feature flags and A/B testing

Stars
2,583
License
Apache-2.0
Last commit
24 days ago
GoActive
Flipper logo

Flipper

Beautiful, performant feature flags for Ruby and Rails

Stars
3,925
License
MIT
Last commit
26 days ago
RubyActive
Split logo

Split

Rack‑based A/B testing framework for Rails, Sinatra, and more

Stars
2,717
License
MIT
Last commit
2 months ago
RubyActive
Rollout logo

Rollout

Redis-backed feature flags for Ruby with granular rollout control

Stars
2,907
License
MIT
Last commit
5 months ago
RubyStable
FeatureProbe logo

FeatureProbe

Open source feature management for confident, low-risk deployments

Stars
1,625
License
Apache-2.0
Last commit
1 year ago
TypeScriptDormant