Assembly Line

Flopflip

🎚Flip or flop features in your React application in real-time backed by flag provider of your choice 🚦

Flopflip is an open-source feature flags project on GitHub under the MIT license (permissive), with 413 stars. It is built with V8, TypeScript, react and Vite. Its last push was 2 days ago.

Stars
413
License
MIT
Activity
Active
Latest release
v15.1.14

Code on GitHub Website

Judgement

What it is
Building block
What it does
React components and hooks for feature toggles that update in real time from providers such as LaunchDarkly, Split or GraphQL, stored in React context or Redux.
Adopt it when
Your React app uses a hosted flag provider and you want one abstraction over it.
Watch out
Mostly one maintainer, and many providers now ship their own React SDKs.
Ready for
Usable
Runs as
Library
Built with
TypeScript, React and Redux
How established
Established: started 9 years ago, latest release v15.1.14.
What the license allows
You can build it into a product you sell, as long as you keep its copyright notice.

Judged on 2026-11-03 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: Flopflip → V8 → LLVM project → runs on a microchip

How compilers were built, back to punched paper tape

Open-source alternatives to Flopflip

  1. 1
    Unleash Unleash

    Open-source feature management platform

    Complete system Production-ready Your engineering team wants a well-established self-hosted feature flag server.

    ★ 14k AGPL-3.0 TypeScript Active, pushed today
  2. 2
    Flagsmith Flagsmith

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

    Complete system Production-ready You want LaunchDarkly-style feature flags but need to self-host for data control or cost reasons.

    ★ 6.6k BSD-3-Clause Python Active, pushed today
  3. 3
    Flipper flippercloud

    🐬 Beautiful, performant feature flags for Ruby.

    Building block Production-ready You run a Ruby or Rails app and want feature flags stored in your own database.

    ★ 4k MIT Ruby Active, pushed today
  4. 4
    Rollout fetlife

    Feature flippers.

    Building block Production-ready Your Ruby app already uses Redis and you want very simple flags.

    ★ 2.9k MIT Ruby Active, pushed 4 days ago
  5. 5
    Flagr openflagr

    Flagr is a feature flagging, A/B testing and dynamic configuration microservice

    Complete system Usable You want a lightweight, self-hosted flag and experiment service called over HTTP from any language.

    ★ 2.6k Apache-2.0 Go Active, pushed 5 days ago
  6. 6
    GO Feature Flag thomaspoignant

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

    Building block Usable You want feature flags without running a database-backed flag server, with flags stored as config files.

    ★ 2.1k MIT Go Active, pushed today
  7. 7
    FeatBit featbit

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

    Complete system Usable You want a self-hosted feature flag platform and your team is comfortable with a .NET stack.

    ★ 2k MIT C# Active, pushed today
  8. 8
    Spec open-feature

    OpenFeature specification

    List, course or other material Production-ready You are building a flag provider or SDK, or want to understand the standard behind OpenFeature SDKs.

    ★ 1.3k Apache-2.0 Gherkin Active, pushed today

Commercial feature flag platforms

  1. 1
    Optimizely Feature Experimentation Optimizely

    Innovate your whole product lifecycle with higher quality releases, safer tests, and faster feature validations.

    Developer tool Production-ready A product organisation runs many experiments and wants rigorous statistics alongside feature rollouts.

    Commercial
  2. 2
    LaunchDarkly LaunchDarkly

    LaunchDarkly helps teams safely manage code and AI agents in production with feature flags, progressive delivery, automated rollback, and runtime control.

    Developer tool Production-ready A larger engineering organisation ships continuously and needs controlled rollouts with audit and governance.

    Commercial
  3. 3
    Statsig Statsig

    Statsig is your modern product development platform, with an integrated toolkit for experimentation, feature management, product analytics, session replays, and much more. Trusted by thousands of companies, from OpenAI to series A startups.

    Developer tool Production-ready A product team wants experimentation and flags with strong statistics without paying LaunchDarkly prices.

    Commercial
  4. 4
    ConfigCat ConfigCat

    ConfigCat is a feature flag service with unlimited seats, awesome support, and a reasonable price tag.

    Developer tool Production-ready A small or mid-size team wants simple feature flags at a predictable price.

    Commercial

Stars, license and activity come from GitHub and refresh on a rolling hourly schedule. The project's own description is quoted as written.