About CircleCI

The world’s best software teams deliver quality code confidently with CircleCI. Go from next-up to feature shipped at the speed ambitious businesses require.

Most customizable environments of any CI/CD provider

Widest choice to customize operating systems, CPUs, GPUs, memory and images for each job.

Get started in no time

CircleCI's automatically generated build and test steps allow GitHub users to set up their first build quickly and with confidence.

Level up your skills with GitHub Learning Lab. Our friendly bot will take you through a series of fun, practical projects to learn the skills you need in no time—and share helpful feedback along the way.