Flagsmith

Open-source feature flag and remote configuration

Code & DevelopmentFreemium

Flagsmith is an open-source feature flag and remote configuration platform that enables developers to manage feature releases, A/B tests, and configuration without deployments. The platform supports user segment targeting for gradual rollouts and provides SDKs for all major platforms. Engineering teams use Flagsmith to decouple feature releases from deployments and safely roll out changes to specific user segments before full release.

Key Features

• ✓Feature flags
• ✓Remote config
• ✓A/B testing
• ✓Segment targeting
• ✓Open source
• ✓Self-hostable