Flagr is a feature flagging, A/B testing and dynamic configuration microservice
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Updated
Aug 20, 2026 - Go
Flagr is a feature flagging, A/B testing and dynamic configuration microservice
Enterprise-grade feature flag platform that you can self-host. Get started - free.
Enterprise-ready, Git native feature management solution
Open Source Feature Flags, Experimentation, and Product Analytics
🦔 PostHog is the leading platform for building self-driving products. Our developer tools – AI observability, analytics, session replay, flags, experiments, error tracking, logs, and more – capture all the context agents need to diagnose problems, uncover opportunities, and ship fixes. Steer it all from Slack, web, desktop, or the MCP.
Flagsmith is an open source feature flagging and remote config service. Self-host or use our hosted version at https://app.flagsmith.com.
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