Open Source · Kotlin-Native
Open Source Feature Flag Platform
Kotlin-native, type-safe feature flags, A/B testing, dynamic configuration. Self-host in 5 minutes.
Flagent is in active development — we ship updates and improvements regularly. Flagent Cloud (SaaS) is planned but not yet launched; no launch date is set. We are looking for sponsors, community support, and funding to accelerate development.
Everything you need to run Flagent self-hosted — backend, UI, SDKs, and integrations.
Ktor backend with Clean Architecture. PostgreSQL, MySQL, SQLite. Kafka, Kinesis, PubSub recorders.
Compose for Web admin UI. Dashboard, flags editor, experiments, analytics, debug console.
Kotlin, JavaScript/TS, Swift, Python, Go. Base + Enhanced (offline eval, SSE) + Debug UI. Kotlin includes an OpenFeature-style KMP client when you want a vendor-agnostic API surface.
First-class Ktor plugin for server-side evaluation. Middleware, caching, health checks.
Kotlin, Ktor, Spring Boot, Android, Swift, JavaScript samples. Deployment, configuration docs.
Get Flagent running in under 5 minutes. No database setup required for Docker.
docker run -p 18000:18000 ghcr.io/maxluxs/flagentOpen http://localhost:18000 — UI included. Default credentials: admin@local / admin
For dev with hot reload: ./gradlew run (backend 18000 + frontend 8080)
Guides for setup, configuration, deployment, and contributing.
Official SDKs for Kotlin, JavaScript/TypeScript, Swift, Python, Go. Base, Enhanced (offline eval, real-time), and Debug UI.
Open Source is free. Flagent Cloud (SaaS) and Enterprise — contact us for a consultation.
Managed Flagent in the cloud — no setup, no maintenance. Fully managed feature flags, analytics, and A/B testing as a service.
Run Flagent with Docker. No database setup required. Start experimenting with feature flags today.
docker run -p 18000:18000 ghcr.io/maxluxs/flagent