Open source feature-toggles projects

Every project in the registry tagged feature-toggles, ranked by real GitHub adoption.

projects 6 combined stars ★ 28K refresh nightly
01 Unleash ★ 14K

Feature flags for rapid, risk-free software deployment

last push17 hours ago languageTypeScript licenseAGPL-3.0
02 Flagsmith ★ 6.6K

Feature flags and remote config for rapid deployment

last push9 hours ago languagePython licenseBSD-3-Clause
03 Flipt ★ 4.9K

Git-native feature management for developers

last push11 hours ago languageGo license
04 FeatBit ★ 1.9K

Open-source feature flag management for seamless deployments

last push8 hours ago languageTypeScript licenseMIT
05 Featurevisor ★ 808

Feature management with GitOps for developers

last push9 days ago languageTypeScript licenseMIT
06 Abby ★ 166

Type-safe feature flags and remote config for developers

last push14 months ago languageTypeScript licenseAGPL-3.0

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Frequently asked questions

How many open source feature-toggles projects are there?

This registry tracks 6 projects tagged feature-toggles, with 28,151 GitHub stars between them. The most-adopted is Unleash at 13,811 stars.

Are these feature-toggles projects free to use?

Yes — 5 of the 6 carry an explicit open-source licence across 3 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.

Which feature-toggles project should I choose?

The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.

Are these feature-toggles projects still maintained?

5 of the 6 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.