Developer tools
CircleCI Performance alternatives
2 open-source projects that already do this job. Free to use - not free to run, which is what the numbers on the right are for.
The projects
harness/harness★37,702 GitHub starsApache-2.0 licenceEnd-to-end developer platform providing source control, CI/CD pipelines, environments, and artifact registries.Open on GitHub ↗concourse/concourse★7,877 GitHub starsApache-2.0 licenceContainer-based CI/CD system that schedules and runs pipelines with worker containers.Open on GitHub ↗
What you give up either way
- Autoscaling and large multi-architecture resource classes out of the box
- Credits-driven billing, bulk-discounted prepaid credits model
- Enterprise support SLAs and optional 24/7 support add-ons
- Rich built-in feature set (orbs, insights, flaky-test detection, GPU runners) and high concurrency limits
An open-source project doing the core job proves a replacement is possible. It does not prove it matches CircleCI Performance, and it does not prove anyone has run it for a month. How we decide.