About Unleash
Unleash is a feature management platform built around feature flags. It lets teams release code behind a flag and turn features on, off or in stages without a redeploy.
What it does
Unleash controls how software behaves in production. You ship changes behind a flag, roll them out gradually, run experiments and use kill switches for risky changes. Release templates and instant rollback help teams recover quickly. The project is open source and can be run in the vendor cloud or self-hosted on your own infrastructure.
Key features
- Feature flags with progressive rollouts
- Kill switches and instant rollback
- Experiments and A/B tests
- Audit logs and role-based access
- SDKs for many programming languages
Who it's for
Product and engineering teams that release often and want a safety net for each change. Larger organisations with governance and compliance needs are a common fit, as are teams that want to self-host their flag service.
Pricing and good to know
The open source project is licensed under AGPL-3.0 and can be self-hosted at no licence cost. The vendor cloud offers a trial, with pricing listed on its site. Self-hosting means you run and secure the service yourself, so plan for upgrades and backups.
Highlights
- Feature flags with progressive rollouts
- Kill switches and instant rollback
- Experiments and A/B tests
- Audit logs and role-based access
- SDKs for many programming languages
