Tags / Backend and APIs /
A library or service that turns features on or off for users at runtime without a deploy.
The 13repositories with this Tag gained +888 net stars in the last 30 days, 19% less than the 30 days before.
0 created in the last 90 days · 8 published a release in the last 30 days · 92K stars in total
Oct 5, 2026Nov 3, 2026
Most net stars, last 30 days
PostHog/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.
+547
62% of the net stars of this Tag
Largest Pace, last 30 days
No other repository gained 2 or more times the net stars of the 30 days before.
Most stars, created in the last 90 days
No other repository with this Tag was created in the last 90 days.
Net stars gained each week. The repositories that gained the most have their own color.
PostHog/posthog gained 75% of the net stars of this Tag in the last 13 weeks.
13 repositories with this Tag. Select a column name to change the order.
| # | Repository | Stars | Gained, 7 days | Pace | |
|---|---|---|---|---|---|
| 1 | PostHog/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. | 41K | +146 | 1.2× | |
| 2 | growthbook/growthbook Open Source Feature Flags, Experimentation, and Product Analytics | 8.6K | +23 | – | |
| 3 | Unleash/unleash Open-source feature management platform | 14K | +20 | 0.9× | |
| 4 | Flagsmith/flagsmith Flagsmith is an open-source feature flag platform with remote config, experimentation, and self-hosted or cloud deployment options. | 6.6K | +14 | 0.6× | |
| 5 | flipt-io/flipt Enterprise-ready, Git native feature management solution | 4.9K | +6 | – | |
| 6 | thomaspoignant/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 🎛️ | 2.1K | +6 | – | |
| 7 | featbit/featbit Enterprise-grade feature flag platform that you can self-host. Get started - free. | 2K | +5 | – | |
| 8 | tompave/fun_with_flags Feature Flags/Toggles for Elixir | 1.2K | +3 | – | |
| 9 | microsoft/FeatureManagement-Dotnet Microsoft.FeatureManagement provides standardized APIs for enabling feature flags within applications. Utilize this library to secure a consistent experience when developing applications that use patterns such as beta access, rollout, dark deployments, and more. | 1.2K | +2 | – | |
| 10 | flippercloud/flipper 🐬 Beautiful, performant feature flags for Ruby. | 4K | +1 | – | |
| 11 | fetlife/rollout Feature flippers. | 2.9K | +1 | – | |
| 12 | openflagr/flagr Flagr is a feature flagging, A/B testing and dynamic configuration microservice | 2.6K | 0 | – | |
| 13 | ff4j/ff4j Feature Flags for Java made easy | 1.5K | 0 | – |
Net stars of the last 30 days are 2 or more times those of the 30 days before.
No repository with this Tag meets this rule now.
Net stars of the last 30 days are 50% or less of those of the 30 days before.
Created on GitHub in the last 90 days.
No repository with this Tag meets this rule now.
Created more than 2 years ago, with a push in the last 7 days and a GitHub release in the last 30 days.
The newest GitHub release is more than 180 days old. A repository that never published a release is not in this list.
No repository with this Tag meets this rule now.
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For each repository, a period counts only when Star History has each of its days, or when the repository was created in the period. Otherwise the table shows "–". The bars of a week with no complete data are grey.
The Pace is the net stars of a period divided by the net stars of the period before. It shows only when Star History covers each day of the period before, with at least 3 net stars a day on average.
The chart at the top adds up the net stars of all the repositories with the Tag. The darker area is the part from the Seed Dataset; the rest is from rising Admissions. A rising Admission comes into the Repository Index because it gained stars quickly. Its Star History before its Admission comes from the Repository Host. Thus the days before many rising Admissions are higher than they were for the repositories in the index at that time. The repositories of the Seed Dataset are a set that does not change.
The releases are the GitHub releases of each repository. The lists and the table do not rank repositories, and they do not say that one repository can replace another.