🐳 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.
“Semaphore 2.0 allows us to build, tag, push, and run Docker images easily. This makes building a powerful pipeline where we can deploy to our Kubernetes cluster fairly easily and quickly.”
Nic Cavigliano
Senior Software Engineer
🔄 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
“Our custom testing script was a pain to maintain and configure, so at some point, we looked into Semaphore and discovered that it can split our tests without us having to maintain anything. We decided to switch to Semaphore, and everyone in the team has been really happy since then.”
Nicolas Medda
Developer at Mynewsdesk
“Semaphore allows us to build anywhere from two to twenty branches in parallel, each one in a threaded environment. We had thousands of tests that were running for a really long time and with Semaphore we got the build to run in under 20 minutes.”
Artem Lypiy
QA Lead at 500px
“I started looking at some Open Source tools because that’s what you do these days. Jenkins was out of the question – it was just a horrible piece of monstrosity that I didn’t even want to touch.”
Yoav Aner
CTO at Kenhub
We’re all in on open source. No hidden tricks, just powerful CI/CD that works. Ready to run it yourself? Install now.
