Unleash

It's open source and can be self-hosted, also the enterprise version supports SSO and a very flexible permission system. The new change request functionality is amazing and performance is outstanding

I'd highly recommend Unleash as a feature flagging platform, especially for businesses looking to adopt a more agile and data-driven approach to software development. At "We Are Learning," we've been using Unleash to progressively roll out new features, allowing us to test the waters and make data-informed adjustments before full-scale deployment. The platform's user-friendly dashboard and robust SDKs have made it effortless to integrate with our existing tech stack, including Microsoft Azure and Next.js. Unleash's fine-grained control over feature toggles not only enables us to target specific user segments but also provides invaluable insights into how new features impact user engagement and system performance. If you're looking to mitigate risks associated with feature releases and want a seamless way to manage your feature flags, Unleash is definitely a platform worth considering.