PostHog
Product analytics, session recording, feature flagging and a/b testing that you can self-host (alternative to Mixpanel, Amplitude, Heap).
Best self-hosted Software Development - Feature Toggle software in 2026
A feature toggle in software development provides an alternative to maintaining multiple feature branches in source code.
We track 6 open-source, self-hosted Software Development - Feature Toggle apps. 6 of them had commits in the last 90 days, 4 can run with Docker, and the most common licenses are MIT (3), BSD-3-Clause (1), GPL-3.0 (1). The most-used languages are Go, Python. Below are the top picks by GitHub stars, followed by every app ranked by stars weighted by maintenance health.
Top 5 by GitHub stars
| # | App | Stars | Health | Last activity | License | Language | Docker |
|---|---|---|---|---|---|---|---|
| 1 | PostHog | 40.8k | Active | 2026-11-10 | MIT | Python | – |
| 2 | Flagsmith | 7k | Active | 2026-11-09 | BSD-3-Clause | Docker, K8S | ✓ |
| 3 | Flipt | 4.9k | Active | 2026-11-09 | GPL-3.0 | Docker, K8S | ✓ |
| 4 | GO Feature Flag | 2.1k | Active | 2026-11-10 | MIT | Go | – |
| 5 | Featbit | 2k | Active | 2026-11-08 | MIT | Docker, K8S | ✓ |
- PostHog — Product analytics, session recording, feature flagging and a/b testing that you can self-host (alternative to Mixpanel, Amplitude, Heap).
- Flagsmith — Dashboard, API and SDKs for adding Feature Flags to your applications (alternative to LaunchDarkly).
- Flipt — Feature flag solution with support for multiple data backends (alternative to LaunchDarkly).
- GO Feature Flag — Simple, complete, and lightweight feature flag solution (alternative to LaunchDarkly).
- Featbit — Enterprise-grade feature flag platform that you can self-host.
Head-to-head comparisons
Flagsmith vs PostHogFlipt vs PostHogGO Feature Flag vs PostHogFlagsmith vs FliptFlagsmith vs GO Feature FlagFlipt vs GO Feature Flag
All 6 self-hosted Software Development - Feature Toggle apps
Ranked by GitHub stars weighted by maintenance health.
Flagsmith
Dashboard, API and SDKs for adding Feature Flags to your applications (alternative to LaunchDarkly).
Flipt
Feature flag solution with support for multiple data backends (alternative to LaunchDarkly).
GO Feature Flag
Simple, complete, and lightweight feature flag solution (alternative to LaunchDarkly).
Featbit
Enterprise-grade feature flag platform that you can self-host.
Nona
Remote configuration and feature flag service with a single REST API, multiple environments, and official JavaScript and .NET clients (alternative to Firebase Remote Config).
Frequently asked questions
What is the best self-hosted Software Development - Feature Toggle software in 2026?
By GitHub stars, the most popular self-hosted Software Development - Feature Toggle apps are PostHog (40,794 stars), Flagsmith (6,969 stars), Flipt (4,943 stars). Popularity is only one signal: also check maintenance health, license and whether it fits your setup.
How many self-hosted Software Development - Feature Toggle apps are actively maintained?
6 of the 6 apps listed had commits in the last 90 days.
Which self-hosted Software Development - Feature Toggle apps can I run with Docker?
4 of the 6 apps can run with Docker.
Which licenses do self-hosted Software Development - Feature Toggle apps use?
The most common licenses in this category are MIT (3 apps), BSD-3-Clause (1 apps), GPL-3.0 (1 apps).
How much does it cost to self-host Software Development - Feature Toggle software?
The software itself is free to download. Based on our rough hardware estimates, the cheapest suitable VPS plan starts at about $3.5/month (median $5/month across apps in this category). Several light apps can share one server.
Related categories
Figures from GitHub and Docker Hub as of 2026-11-15; hosting costs are rough estimates.