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@open-feature

OpenFeature

Standardizing Feature Flagging for Everyone

OpenFeature Logo

Welcome to the OpenFeature project 👋

OpenFeature is an open specification that provides a vendor-agnostic, community-driven API for feature flagging that works with your favorite feature flag management tool or in-house solution.

Learn More 📚 · Get Started 🔭 · Contribute 😍 · Discover the Ecosystem 🧭


👋 Getting involved

There is a lot to do! If you're interested in getting involved, please join our Slack channel, the mailing lists, and attend the community meetings. We're a friendly, collaborative group and look forward to working together!

Learn how to get involved in the OpenFeature Contributor Ladder.

🦺 Help keep our community safe, inviting, and inclusive

OpenFeature follows the CNCF Community Code of Conduct. Please abide by this Code of Conduct when interacting with all repositories under the OpenFeature umbrella and when interacting with people.

👾 Reporting Security Incidents

Please be mindful that Security-related issues should be reported through our Security Policy as Security-related issues and vulnerabilities can be exploited and we request confidentiality whenever possible.


OpenFeature is a CNCF incubating project.

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  1. spec spec Public

    OpenFeature specification

    Python 1.1k 51

  2. community community Public

    OpenFeature project community and governance

    JavaScript 102 100

  3. openfeature.dev openfeature.dev Public

    OpenFeature Website

    TypeScript 58 97

  4. playground playground Public

    OpenFeature SDK demos and experimentation

    TypeScript 72 30

  5. open-feature-operator open-feature-operator Public

    A Kubernetes feature flag operator

    Go 284 53

  6. flagd flagd Public

    A feature flag daemon with a Unix philosophy

    Go 882 104

Repositories

Showing 10 of 56 repositories
  • flagd-evaluator Public

    A shareable flagd evaluator for multiple SDKs

    open-feature/flagd-evaluator’s past year of commit activity
    Rust 0 Apache-2.0 0 10 9 Updated Mar 16, 2026
  • protocol Public

    OpenFeature Remote Evaluation Protocol

    open-feature/protocol’s past year of commit activity
    48 Apache-2.0 4 8 5 Updated Mar 16, 2026
  • python-sdk Public

    Python SDK for OpenFeature

    open-feature/python-sdk’s past year of commit activity
    Python 101 Apache-2.0 35 9 (1 issue needs help) 6 Updated Mar 16, 2026
  • swift-sdk Public

    Swift implementation of the OpenFeature SDK for iOS clients

    open-feature/swift-sdk’s past year of commit activity
    Swift 28 Apache-2.0 9 16 (4 issues need help) 11 Updated Mar 17, 2026
  • java-sdk Public

    Java implementation of the OpenFeature SDK

    open-feature/java-sdk’s past year of commit activity
    Java 117 Apache-2.0 52 11 (2 issues need help) 10 Updated Mar 16, 2026
  • kotlin-sdk Public

    Kotlin implementation of the OpenFeature SDK for Android clients

    open-feature/kotlin-sdk’s past year of commit activity
    Kotlin 20 Apache-2.0 8 15 17 Updated Mar 16, 2026
  • ruby-sdk-contrib Public

    Community contributions for hooks and reference providers in Ruby

    open-feature/ruby-sdk-contrib’s past year of commit activity
    Ruby 5 Apache-2.0 10 3 5 Updated Mar 16, 2026
  • ruby-sdk Public

    Ruby implementation of the OpenFeature SDK

    open-feature/ruby-sdk’s past year of commit activity
    Ruby 37 Apache-2.0 15 2 0 Updated Mar 16, 2026
  • kotlin-sdk-contrib Public

    Community contributions for hooks and reference providers

    open-feature/kotlin-sdk-contrib’s past year of commit activity
    Kotlin 2 Apache-2.0 1 2 11 Updated Mar 16, 2026
  • python-sdk-contrib Public

    Community contributions for hooks and reference providers in python

    open-feature/python-sdk-contrib’s past year of commit activity
    Python 23 28 19 (5 issues need help) 12 Updated Mar 16, 2026