13 Best feature flag tools

Featured feature flag tools

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  FeatBit

  Feature flags service

  FeatBit is a feature flag and experimentation platform that lets teams control and rollout features safely, run A/B tests, target user segments, track feature usage in real time and export metrics to analytics tools, with options for hosted or self-hosted deployment.

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  AB Tasty

  Experience optimization platform

  AB Tasty enables companies to optimize their websites and apps by running A/B and multivariate tests, managing feature flag rollouts, delivering personalized content and product recommendations, and analyzing user behavior for continuous improvement.

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  Posthog

  Product analytics toolkit

  PostHog is an open-source product analytics platform that captures user events and offers funnels, cohorts, retention, session replay, heatmaps, feature flagging and A/B testing, deployable self-hosted or via the cloud.

Selection criteria and key features

• Rollout flexibility:
  Can it enable gradual rollouts and staged feature releases?
• Targeting rules:
  Does it support detailed targeting for different user segments?
• A/B testing integration:
  Can it integrate with A/B testing frameworks for experimental features?
• Flag control:
  Does the tool allow granular control over feature toggles across environments?
• Real-time updates:
  Does it update feature flags instantly for immediate impact?
• Integration:
  Does it integrate seamlessly with CI/CD and development tools?
• Security and compliance:
  Does it secure flag data and comply with relevant standards?
• Ease of use:
  Is the interface intuitive for developers and product teams?
• Audit logging:
  Does it maintain logs of flag changes and rollout history?

All feature flag tools