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Alternatives

Products that do what Flagsmith does

Feature flag, remote config and AB testing platform

  1. 1FO
  2. 2

    Feature flagging that's purpose-built for B2B

    2024

  3. 3

    Feature Flags. Powered by Git

    2024

  4. 4

    Feature flags, targeting rules, rollouts. All from Vercel.

    Apr 2026

  5. 5
    Toggly103

    Build better software faster using feature flags

    2022

  6. 6

    Feature Flag Experimentation made by engineers for engineers

    2022

  7. 7WB

    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

  8. 8

    Unlimited feature flags on web, mobile, OTT and server-side

    2020

  9. 9FI
  10. 10

    Ship faster with less risk with free feature flags

    2019

  11. 11
    OpenFlags114

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

    Mar 2026

  12. 12
    Flipt v2178

    Feature flags for safe deployments, git-native & self-hosted

    Oct 2025

  13. 13
    Kinde211

    Infrastructure for authentication, feature flags & billing

    2022

  14. 14
    DevCycle162

    Feature flag suite for modern product engineering teams

    2022

  15. 15AS
  16. 16
    Reflag117

    First ever self-cleaning feature flags for TypeScript

    Sep 2025

  17. 17NF

    I built a package that provides a feature-flag service powered entirely by GitHub issues and NextJS. Define a list of app features and environments in an issue description, then simply toggle a feature on/off by ticking a checkbox - without having to redeploy your app. It can be used directly inside a NextJS app or be deployed as a standalone service and consumed by any client over HTTP. Plus it supports react server-side components right out of the box. The architecture leverages GitHub Webhooks to invalidate the NextJS cache whenever there is a change. The next time a user reloads a…

    2024 · github.com

  18. 18FF
  19. 19

    Feature flag and configuration management service

    2020

  20. 20FF

    Hello everyone! To briefly introduce myself, I'm mainly a backend developer, working in the industry for the past 7 years. On one of the products I was working on we were heavily using a custom feature flagging system. Basically, any functionality we were building was starting with a new feature flag. It was useful because: 1. We were able to silently deploy a feature to production for real environment testing 2. We would enable feature flag for specific users across our team, like marketing, sales, so everyone can check it out, test and prepare for the release 3. We were restricting certain…

    2025 · fecusio.com

  21. 21

    An intuitive, dead simple feature flagging platform

    2018

  22. 22LO

    Hey everyone, Here is a link to the first version of an on-premise feature flag/toggle system, made with GO, that I developed at the company I'm working at (MEDIGO). It allows you to isolate features within your projects, and enable/disable them in multiple environments with a simple click in a dashboard. For instance if you just developed a new feature and you want to enable it on the testing environment, all you have to do is go to Laika's web page and activate the flag for the feature on this environment. Or if a bug is spotted on a feature already in production, disabling is…

    2016

  23. 23
    Otelic116

    Affordable hosted Logs & Traces for your app

    2015

  24. 24
    DevHub126

    Offline applications to support developers' daily tasks

    2024

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