Self-host the SaaS · direction

Build your own feature-flag service.

Deciding who sees what is product strategy. Keep it in-house.

Stop renting: LaunchDarkly

The ranking rule

Repositories matching this query, sorted by stars:

topic:feature-flags stars:>200 pushed:>2025-10-29 archived:false

Synced nightly; star history kept so momentum is measured, not guessed.

27 projects

live from source · api.github.com · Oct 29, 1:45 AM UTC
#1PostHog /

posthog

:hedgehog: PostHog is the leading platform for building self-driving products. Our developer tools – AI observability, analytics, session replay, flags, experiments, error tracking, logs, and more – capture all the context agents need to diagnose problems, uncover opportunities, and ship fixes. Steer it all from Slack, web, desktop, or the MCP.

★ 40.5kPythonpushed today
#2Unleash /

unleash

Open-source feature management platform

★ 13.9kAGPL-3.0TypeScriptpushed today
#3openreplay /

openreplay

Session replay, cobrowsing and product analytics you can self-host. Best for reproducing issues and iterating on your product.

★ 13.1kTypeScriptpushed today
#4growthbook /

growthbook

Open Source Feature Flags, Experimentation, and Product Analytics

★ 8.5kTypeScriptpushed today
#5vercel /

next-forge

Production-grade Turborepo template for Next.js apps.

★ 7.7kMITTypeScriptpushed 5mo ago
#6Flagsmith /

flagsmith

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

★ 6.6kBSD-3-ClausePythonpushed today
#7Countly /

countly-server

Countly is a privacy-first, AI-powered analytics and engagement platform for understanding and optimizing customer journeys across digital applications, from desktop and mobile to IoT and connected environments.

★ 5.9kJavaScriptpushed today
#8flipt-io /

flipt

Enterprise-ready, Git native feature management solution

★ 4.9kGopushed today
#9flippercloud /

flipper

🐬 Beautiful, performant feature flags for Ruby.

★ 4kMITRubypushed today
#10fetlife /

rollout

Feature flippers.

★ 2.9kMITRubypushed today
#11openflagr /

flagr

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

★ 2.6kApache-2.0Gopushed today
#12uber /

piranha

A tool for refactoring code related to feature flag APIs

★ 2.5kApache-2.0Rustpushed 8d ago
#13thomaspoignant /

go-feature-flag

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

★ 2.1kMITGopushed today
#14featbit /

featbit

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

★ 1.9kMITC#pushed yesterday
#15FeatureProbe /

FeatureProbe

FeatureProbe is an open source feature management service. 开源的高效可视化『特性』管理平台,提供特性开关、灰度发布、AB实验全功能。

★ 1.6kApache-2.0TypeScriptpushed 4mo ago
#16open-feature /

spec

OpenFeature specification

★ 1.3kApache-2.0Gherkinpushed today
#17django-waffle /

django-waffle

A feature flipper for Django

★ 1.3kBSD-3-ClausePythonpushed 4mo ago
#18togglz /

togglz

Feature Flags for the Java platform

★ 1kApache-2.0Javapushed 5d ago
#19featurevisor /

featurevisor

Feature flags, experiments, and remote config management with version control

★ 814MITTypeScriptpushed 2d ago
#20ylsideas /

feature-flags

A Laravel package for handling feature flags

★ 626MITPHPpushed 5mo ago
#21bucketeer-io /

bucketeer

Feature Flag Management and A/B Testing platform

★ 485Apache-2.0Gopushed today
#22juspay /

superposition

Superposition is a context-based configuration management system designed to facilitate safe and flexible rollout of config changes

★ 439Apache-2.0Rustpushed today
#23tdeekens /

flopflip

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

★ 412MITJavaScriptpushed today
#24featurehub-io /

featurehub

FeatureHub - cloud native feature flags, A/B testing and remote configuration service. Real-time streaming feature updates. Provided with Java, JavaScript, React, Python, Go, .Net, Ruby, Android, Swift and Flutter SDKs.

★ 364Dartpushed today
#25cfpb /

django-flags

Feature flags for Django projects

★ 302CC0-1.0Pythonpushed 6mo ago
#26launchdarkly /

swift-eventsource

Server-sent events (SSE) client implementation in Swift for iOS, macOS, tvOS, and watchOS

★ 290Swiftpushed 29d ago
#27Unleash /

unleash-node-sdk

Unleash client SDK for Node.js

★ 226Apache-2.0TypeScriptpushed today