Best Feature Flag Management tools by public signals

These picks are computed from scored public evidence. Use the openness column in the ranking to separate OSI-approved, source-available, open-core, proprietary, and unverified-license tools.

Use Case Rankings

Ordered by ToolVitals score, health, shipping, confidence, and then adoption as a tie-breaker.

# Tool Health Shipping Openness Stars Score Status
01 Go Feature Flag
GO Feature Flag is a simple, complete and lightweight self-hosted feature flag solution 100% Open Source. 🎛️
87 95 OSI-approved OSS 2k 93 Active
02 Rollout.io
Remote config and feature flag management system for runtime behavior changes.
72 80 OSI-approved OSS 17 82 Warning
03 Flipper
Open-source feature flag management library and UI for Ruby applications.
77 40 OSI-approved OSS 4k 70 Warning
04 Hypertune
Hypertune is a tool tracked for feature flag management signals, maintenance activity, and public release evidence.
73 30 Proprietary target 60 Warning
05 Featurevisor
Feature flag, experimentation, and remote configuration management with version control.
64 24 OSI-approved OSS 801 57 Warning
06 OpenFlags
Open source, self-hosted feature flags for modern JavaScript applications.
39 18 OSI-approved OSS 17 48 Critical
07 Gatekeeper
Full-stack feature flag platform with dashboard and TypeScript SDK.
41 18 License unknown 1 46 Critical
08 Switchflag
Full-stack feature flag platform with edge evaluation and RBAC.
44 11 OSI-approved OSS 0 45 Critical
09 Flagent
Feature flags, A/B testing, and dynamic configuration service.
24 7 OSI-approved OSS 4 35 Critical
10 Bandeira
Self-hosted open-source feature flags system.
27 4 OSI-approved OSS 19 33 Critical
11 Config Hub
Open source feature flag and remote configuration platform.
17 17 License unknown 1 33 Critical
12 Flagasaurus
Open-source feature management platform.
26 0 OSI-approved OSS 17 29 Critical