Free & Open-Source CircleCI Alternatives

Continuous integration platform.

1. GitHub Actions Free ↗
   Free tier of GitHub's built-in CI/CD.
   ●●○Medium · Requires self-hosting
2. Drone CI ↗ FOSSPRIVATESELF-HOST
   Container-native CI/CD platform.
   ●●○Medium · Requires self-hosting
3. Woodpecker CI ↗ FOSSPRIVATESELF-HOST
   Open-source CI engine forked from Drone.
   ●●○Medium · Requires self-hosting
4. Jenkins CE ↗ FOSSPRIVATESELF-HOST
   Original free open-source CI server.
   ●●○Medium · Requires self-hosting