GO Feature Flag is 100% open source under the MIT license - self-hosted, OpenFeature-native, and free forever. We do not sell it, so the project runs on sponsorships and the teams who choose paid support.
The whole project lives in the open under the permissive MIT license. Read it, fork it, run it, and build on it - no asterisks, no open-core bait and switch.
GO Feature Flag runs on the infrastructure you already have. No database to operate, no per-seat bill, and no vendor that can pull the rug out from under you.
Your app evaluates flags through the vendor-neutral OpenFeature API, not a proprietary client - so you stay portable across the whole ecosystem.
OpenFeature supportGO Feature Flag has been open source from day one, and it is not a teaser for a paid edition. There is no “enterprise version” hiding the features you actually need behind a license key - the whole project is right there on GitHub under the MIT license.
Development happens in the open: issues, pull requests, and the roadmap are all public, and contributions are genuinely welcome - whether that is code, documentation, a bug report, or an idea.
MIT license
Permissive. Use it anywhere, even commercially.
100% open source
No open-core, no paywalled features.
The project is shaped by the people who use it. Anyone can ask questions on Slack, report a bug, or propose a feature - the direction of GO Feature Flag is a public conversation.
Already using it? Adding your organization to the adopters list is a quick, free way to support the project and help others trust it.
An active Slack channel for questions and help
A growing list of companies running it in production
There is no paid SaaS and no proprietary edition - the project does not make money directly. It keeps moving thanks to people who choose to give back. If GO Feature Flag is useful to you or your team, here are two ways to help, both of them genuinely appreciated.
Fund the work directly. Sponsorships pay for maintenance, new features, and keeping the project healthy and independent.
Become a sponsorNo budget? No problem. Listing your company in the adopters file is free, takes a pull request, and helps the project grow.
Join the adoptersSome teams want more than community support - a guaranteed response, a maintainer on call, or a hand getting to production. For them we offer a paid enterprise support plan, and choosing it is one of the ways you keep the open-source project funded.
You never have to pay to use GO Feature Flag. Support is there if and when you need it - everything else stays free and open.
Enterprise support includes
MIT-licensed, self-hosted, and OpenFeature-native. Use it for free, sponsor it to keep it going, or reach out if your team needs paid support.