
🐳 Auto-scale Docker images
Our serverless model auto-scales to every git push. You’ll only pay for what you use.
📦 Public or private Docker images
Build, test & distribute apps for iOS, macOS, tvOS, and watchOS.
🧩 Supports all common registries
Semaphore supports iOS apps made with Xcode, React Native and Flutter.
Starting out with Docker?
We’ll help you set up CI/CD with containers the right way.

🔄 7× faster Docker builds
Build images up to 7× faster than typical registries with bare-metal performance.
🚄 Complete flexibility
Build with the full Docker CLI in clean Linux VMs, then deploy or promote to any registry.
🎛️ Unlimited pre-built images
Access a ready-to-use library from the Semaphore Container Registry.
⏱️ Enterprise-grade release
Deploy canary releases from master, stage on-demand from dev, and ship any known good version through flexible workflows.
🪛 Works with any cloud
Deploy to AWS, Google Cloud, Azure, DigitalOcean, your own Kubernetes, ECS, Docker Swarm—or any Docker host.
🗄️ Monitor your deployments
Secure with secrets, add scanners, get Slack alerts, and track everything with custom dashboards.
Customer reviews

✅ Faster builds and releases with parallel testing and real-time debugging
✅ Higher productivity and reliability through visual workflows and flaky test analysis

Derek Rockwell
CTO and CISO at Fabric
✅ Packaging build times reduced by 70% and release pipelines accelerated by 75%
✅ 50% lower resource usage after migrating from Jenkins to Semaphore

Sneha Wadhwa
Senior Software Engineer II at Confluent
✅ Build times cut by 80-83%
✅ 20% cost savings with custom build triggers

Jenah Blitz
Software Engineer at Simply Business
We’re all in on open source. No hidden tricks, just powerful CI/CD that works. Ready to run it yourself? Install now.