Best Free Feature Flags Tools

C

ConfigCat

Free tier available

Feature flag service with unlimited seats across all plans and config delivery via CDN

Switching Cost: moderate

D

DevCycle

Free tier available

Feature flag platform with edge delivery, unlimited seats and flags on free tier

Switching Cost: moderate

F

Flagsmith

Free tier available

Open-source feature flag and remote config service with A/B testing support

Switching Cost: moderate

F

Flipt

Free tier available

Git-native, open-source feature flag solution with REST and gRPC APIs

Switching Cost: drop-in

G

GrowthBook

Free tier available

Open-source feature flagging and A/B testing platform with warehouse-native analytics

Switching Cost: moderate

L

LaunchDarkly

Free tier available

Feature flag management platform with SDK integrations, targeting rules, experimentation, and session replays

Switching Cost: moderate

S

Split.io (Harness FME)

Free tier available

Feature flag management and experimentation platform with client-side MAU-based pricing

Switching Cost: significant

S

Statsig

Free tier available

Feature flagging and experimentation platform with warehouse-native integrations and product analytics

Switching Cost: moderate

U

Unleash

Free tier available

Open-source feature flag management with gradual rollouts, A/B testing, and SDK support

Switching Cost: moderate