GO Feature Flag
Lightweight, MIT-licensed, self-hosted feature flag solution built on OpenFeature.
- Verified facts
- 5 of 5
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About GO Feature Flag
GO Feature Flag is a small open-source feature flag project that started as a Go library and grew into a standalone relay proxy usable from many languages through OpenFeature providers. You define flags in a YAML, JSON or TOML file, stored wherever you like, such as a Git repository, S3, Kubernetes ConfigMap or HTTP endpoint, and the service polls it and evaluates flags for your apps. It supports targeting rules, percentage and progressive rollouts, scheduled changes, A/B variations and exporting evaluation data to analytics or storage systems for later analysis. A flag editor helps write configuration files. It is completely free under the MIT licence, with no paid tier, and is maintained by a small team of contributors. It suits developers who want flags without a vendor or database, but it lacks the dashboards, approvals and support of commercial platforms. It runs self-hosted, as a library, or as a container.
Best for: Developers who want simple file-based flags without a vendor.
Pros and cons
What works
- Free under the MIT licence
- Flags stored in files wherever you like
- Works with OpenFeature SDKs in many languages
Why people leave
- No hosted dashboard or approval workflows
- Small maintainer team and community support only
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GO Feature Flag: common questions
Is GO Feature Flag free?
Yes. GO Feature Flag is free, open-source software that you can host yourself.
Is GO Feature Flag open source?
Yes. The source code is on GitHub at thomaspoignant/go-feature-flag. You can also run it on your own server.
What platforms does GO Feature Flag run on?
GO Feature Flag is available for Self-hosted.
What are the best alternatives to GO Feature Flag?
The highest-ranked GO Feature Flag alternatives right now are Flipt, Unleash and Flagsmith. See the full ranked list for pricing, platforms and verified facts.