Alternatives

Products that do what Flagsmith – open-source feature flag and remote config service does

1. 1
   Flagsmith▲128

   Feature flag, remote config and AB testing platform

   2021

2. 2AS
   A self-hosted and open-source feature flags platform▲6

   2023 · github.com

3. 3FA
   Flipt – an open-source feature flag solution▲59

   2019 · github.com

4. 4FI
   Featureflags.io – microsite for feature flag best practices, libraries▲27

   2017 · featureflags.io

5. 5FF
   Feature flag management for feature lifecycle control▲63

   2016 · launchdarkly.com

6. 6
   Flipt Cloud▲165

   Feature Flags. Powered by Git

   2024

7. 7
   OpenFlags▲114

   Fast, self-hosted, edge-ready feature flags for modern teams

   Mar 2026

8. 8AR
   A remote browser product, open-sourced▲253

   2019 · github.com

9. 9IF
   Introducing Flagr: An open-source feature flagging and A/B testing tool▲7

   2017 · engineering.checkr.com

10. 10AG
    A Go web server with logging, tracing, and demo apps in a single file▲116

    2019 · github.com

11. 11WB
    We Built and Open Sourced a Feature Flagging Platform▲11

    Hi. We just open sourced Bullet Train, a Feature Flag and Remote Config platform. It's a collection of tools: server API, admin front end and clients for a bunch of different platforms. Together they allow you to control feature flags and remote config across projects, environments and users. We realised that we were building ad-hoc feature flag stuff into individual projects over and over, so we had a look around to see if there was a way of doing this in a more formal manner. There are a few commercial solutions around but they were quite expensive and seemed to be aimed more at the…

    2018

12. 12SB
    SwitchKeeper – Boringly simple feature flags▲6

    2022 · switchkeeper.com

13. 13SA
    SwitchFeat – An open source feature flags and A/B testing platform▲9

    2023 · switchfeat.com

14. 14FF
    Feature flags on the edge, with Haskell and Rust▲6

    2022 · firstkindsoftware.com

15. 15RR
    RemoteJS – Remote Browser Debugging▲59

    2019 · remotejs.com

16. 16TL
    TinyToggle – Lightweight feature flags for devs and small teams▲6

    2025 · tinytoggle.com

17. 17CA
    Chelodina – A Logo-to-Python Transpiler▲36

    2018 · pablasso.com

18. 18OC
    Opsmatic configuration monitoring▲20

    2014 · opsmatic.com

19. 19GM
    GitSpo – Monitoring and Analytics for Open-Source Projects▲12

    2020 · gitspo.com

20. 20GA
    Grav, an Open Source Flat-File CMS▲7

    2014 · getgrav.org

21. 21
    ConfigCat▲19

    Feature flag and configuration management service

    2020

22. 22CD
    Central Dogma – highly-available version-controlled config repository▲12

    2017 · line.github.io

23. 23OT
    Oroboros – templated configuration server▲10

    2014 · github.com

24. 24SB
    Step-by-step feature flag implementation in Ruby▲8

    2020 · blog.optimizely.com

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