The open source
feature flag platform.
A free, self-hosted feature flagging platform built on OpenFeature standards. Ship features safely, on your infrastructure, on your terms.
NEW TO FEATURE FLAGS?
Deploy first. Release when you're ready.
A feature flag is a conditional check around new functionality. Once it's in place, deploying code and releasing it to users become two separate steps. You can turn a feature on for 5% of users, expand to 50%, or shut it off entirely, all without touching your codebase or redeploying.
Everything you need to control your releases.
A simple but powerful toolkit for deciding exactly what ships, to whom, and when.
Rule-based targeting
Target users by attribute, segment, or environment. Define who sees what without changing code or redeploying.
Kill switch
Something wrong in production? Disable any feature instantly with a single toggle.
Weighted rollouts
Release to 1% of users, then 10%, then everyone. Canary releases and progressive delivery.
OpenFeature Provider support
Native SDK support for Java, Python, Kotlin, iOS, Android, and more. See all supported languages
Audit logs
Every flag change and every decision is logged and searchable. Know exactly what happened and when.
Authentication
Powered by Better Auth, so you get secure, familiar auth flows with minimal setup, easier to adopt and maintain.
Where we're headed
This is an open source project, which means it evolves with its community. Here's what's live today and what we’re exploring next.
- Rule-based targeting
- Kill switch
- Weighted rollouts
- Boolean / Number / Text / Object flags
- Audit logs
- Team-based organization
- Flagsets
- Approval workflows
- Usage reporting & metrics
- Webhook integrations
- AI-assisted flag generation
- Experimentation & A/B hooks
Ready to own your feature delivery?
Free, open source, and yours forever.