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Dev tools · December 26, 2017

Flagr

Open source feature flagging and A/B testing service

Flagr launched on December 26, 2017 with 5 votes. The site was still online in September 2026, 8 years on.

What it does

Flagr is an open source Go service that delivers the right experience to the right entity and monitors the impact. It provides feature flags, experimentation (A/B testing), and dynamic configuration. It has clear swagger REST APIs for flags management and flag evaluation.

Flagr is a feature flagging, A/B testing and dynamic configuration microservice - openflagr/flagr

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