Best Self-hosted Feature Flag Tools in 2026

Unleash

Feature flags for rapid, risk-free software deployment

Stars
13,435
Forks
846
Last commit
12 hours ago

A powerful feature management platform enabling gradual rollouts, A/B testing, and seamless integration for continuous delivery.

Open Source Alternative to:

LaunchDarkly

GrowthBook

Open-source A/B testing and feature flagging platform

Stars
7,715
Forks
737
Last commit
10 hours ago

Powerful, developer-friendly experimentation tool for data-driven product decisions. Seamless integration, real-time insights, and flexible deployment.

Open Source Alternative to:

LaunchDarkly

Flagsmith

Feature flags and remote config for rapid deployment

Stars
6,327
Forks
513
Last commit
16 hours ago

Powerful feature management platform for seamless software releases, A/B testing, and personalized user experiences.

Open Source Alternative to:

LaunchDarkly

Flipt

Git-native feature management for developers

Stars
4,784
Forks
286
Last commit
16 hours ago

A feature flag platform that integrates with Git workflows, enabling developers to manage features directly in their codebase.

Open Source Alternative to:

LaunchDarkly

FeatBit

Open-source feature flag management for seamless deployments

Stars
1,797
Forks
140
Last commit
1 day ago

FeatBit is a fast, scalable feature flag service that enables risk mitigation and fosters business growth through controlled feature releases.

Open Source Alternative to:

LaunchDarkly

Abby

Type-safe feature flags and remote config for developers

Stars
166
Forks
21
Last commit
9 months ago

Abby offers open-source, fully typed feature flagging and remote configuration for React and Next.js, with multi-environment testing and debugging tools.

Open Source Alternative to:

LaunchDarkly

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Unleash

Feature flags for rapid, risk-free software deployment

Stars
13,435
Forks
846
Last commit
12 hours ago

A powerful feature management platform enabling gradual rollouts, A/B testing, and seamless integration for continuous delivery.

Open Source Alternative to:

LaunchDarkly

GrowthBook

Open-source A/B testing and feature flagging platform

Stars
7,715
Forks
737
Last commit
10 hours ago

Powerful, developer-friendly experimentation tool for data-driven product decisions. Seamless integration, real-time insights, and flexible deployment.

Open Source Alternative to:

LaunchDarkly

Flagsmith

Feature flags and remote config for rapid deployment

Stars
6,327
Forks
513
Last commit
16 hours ago

Powerful feature management platform for seamless software releases, A/B testing, and personalized user experiences.

Open Source Alternative to:

LaunchDarkly

Flipt

Git-native feature management for developers

Stars
4,784
Forks
286
Last commit
16 hours ago

A feature flag platform that integrates with Git workflows, enabling developers to manage features directly in their codebase.

Open Source Alternative to:

LaunchDarkly

FeatBit

Open-source feature flag management for seamless deployments

Stars
1,797
Forks
140
Last commit
1 day ago

FeatBit is a fast, scalable feature flag service that enables risk mitigation and fosters business growth through controlled feature releases.

Open Source Alternative to:

LaunchDarkly

Abby

Type-safe feature flags and remote config for developers

Stars
166
Forks
21
Last commit
9 months ago

Abby offers open-source, fully typed feature flagging and remote configuration for React and Next.js, with multi-environment testing and debugging tools.

Open Source Alternative to:

LaunchDarkly

Self-hosted Feature Flag Tools

A curated collection of the best self-hosted platforms for managing feature flags, A/B testing, and gradual rollouts.