Self-hosted alternatives to ConfigCat
Want feature flags without handing your data to ConfigCat? These 6 self-hosted apps run on your own server. Cheapest estimated hosting starts at about $3.5/month.
About ConfigCat: Hosted feature-flag service.
| App | Health | Stars | License | Docker | RAM (est.) | From |
|---|---|---|---|---|---|---|
| PostHog | Active | 40.6k | MIT | – | 2 GB | $10/mo |
| Flagsmith | Active | 6.6k | BSD-3-Clause | ✓ | 1 GB | $5/mo |
| Flipt | Active | 4.9k | GPL-3.0 | ✓ | 512 MB | $3.5/mo |
| GO Feature Flag | Active | 2.1k | MIT | – | 512 MB | $3.5/mo |
| Featbit | Active | 2k | MIT | ✓ | 1 GB | $5/mo |
| Nona | Active | 51 | Apache-2.0 | ✓ | 1 GB | $5/mo |
The options in detail
1. PostHog
Product analytics, session recording, feature flagging and a/b testing that you can self-host (alternative to Mixpanel, Amplitude, Heap).
Active Last commit 2026-11-05. Latest release desktop-v0.61.943 (2026-11-05). Needs roughly 2 GB RAM. How to run it →
2. Flagsmith
Dashboard, API and SDKs for adding Feature Flags to your applications (alternative to LaunchDarkly).
Active Last commit 2026-11-04. 10+ releases in the past year. Latest release v2.288.2 (2026-10-29). Needs roughly 1 GB RAM. How to run it →
3. Flipt
Feature flag solution with support for multiple data backends (alternative to LaunchDarkly).
Active Last commit 2026-11-05. 10+ releases in the past year. Latest release v2.14.1 (2026-10-23). Needs roughly 512 MB RAM. How to run it →
4. GO Feature Flag
Simple, complete, and lightweight feature flag solution (alternative to LaunchDarkly).
Active Last commit 2026-11-05. Latest release v1.58.0 (2026-11-02). Needs roughly 512 MB RAM. How to run it →
5. Featbit
Enterprise-grade feature flag platform that you can self-host.
Active Last commit 2026-11-04. 10+ releases in the past year. Latest release 6.1.0 (2026-10-27). Needs roughly 1 GB RAM. How to run it →
6. 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).
Active Last commit 2026-11-03. Latest release 4.1.0 (2026-09-28). Needs roughly 1 GB RAM. How to run it →
Why self-host instead of ConfigCat?
- Own your data — it lives on a server you control, with backups you decide on.
- Predictable cost — a small VPS often replaces per-seat pricing for a whole team or family.
- No lock-in — open-source licenses let you keep running the software even if a vendor disappears.
The trade-off: you are responsible for updates, backups and security. Pick an app marked Active (a commit in the last 90 days) and with Docker support for the easiest ride.
Browse related categories
Other alternatives guides
ConfigCat is a trademark of its owner; this site is not affiliated with it. Listings come from the community-maintained awesome-selfhosted list.