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Semaphore lets you test and deploy code at the push of a button with hosted continuous integration and delivery.

After you push code to GitHub, it quickly runs your tests on a platform with first-class Docker support and 100+ tools preinstalled. Semaphore lets you parallelize your builds, get feedback right inside pull requests, and deploy more often in a unified workflow. Already trusted by thousands of businesses around the globe, it can help your team move faster too.

Get started in minutes

Focus on writing code instead of wasting time maintaining a custom CI/CD server. It takes a few clicks to connect your GitHub account, select a repository, customize suggested build steps and run your first build.

Works with your stack

  • 100+ open source languages and tools preinstalled, based on Linux
  • Native Docker support with image caching
  • Easily customizable via environment variables, config files and additional packages

Level up with continuous deployment

Get feedback faster by automatically deploying verified versions of code. Quickly set up staging and production targets using integrations with AWS, Google Cloud, Docker Hub and more.

Speed up your time to results

Semaphore boxes provide the fastest hosted CI/CD service, 91% faster than the closest competitor. On top of that, you can easily track your build speed and parallelize tests.

Visit for info on more plans.

When you push new code to GitHub, Semaphore runs your automated test suite, along with any security and style checks that you’ve defined.
See at a glance that a given branch passes all the checks that you've defined as mandatory for your project.
Instead of waiting for slow CI, use Boosters to automatically parallelize your build.
Empower every team member to deploy new features, or test out their work in progress on a staging server in a unified workflow.
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