GitHub Actions vs GitLab CI
Both are integrated CI/CD platforms tied to their source control hosts. Compare workflows, runner infrastructure, features, and pricing.
| Criteria | GitHub Actions | GitLab CI |
|---|---|---|
| Configuration | YAML workflows in .github/workflows/. Event-driven triggers. Reusable workflows and composite actions for DRY pipelines. | Single .gitlab-ci.yml at repo root. Stage-based pipeline model. includes: for shared configs. Parent-child and multi-project pipelines. |
| Marketplace / Templates | Massive marketplace with 20,000+ actions. Community-driven, but quality varies. Easy to publish and consume. | CI/CD component catalog (newer). Built-in Auto DevOps templates. Smaller third-party ecosystem. |
| Runner Infrastructure | GitHub-hosted runners (Linux, macOS, Windows) or self-hosted. Larger runners available on Team/Enterprise plans. | Shared runners on GitLab.com or self-managed runners. Kubernetes executor, Docker executor, and autoscaling via Runner Manager. |
| Security Features | OIDC for cloud auth, environment protection rules, required reviewers, secrets management, and Dependabot integration. | Protected variables, environment approvals, SAST/DAST built-in, container scanning, and license compliance — all in one platform. |
| Visibility & Debugging | Per-step logs, annotations, job summaries. Debug logging via ACTIONS_STEP_DEBUG. Limited pipeline visualization. | DAG visualization, pipeline editor with lint, merge train view. Better end-to-end pipeline visibility out of the box. |
| Pricing | Free tier: 2,000 min/month for public repos (unlimited), private repos have limits. Pay-per-minute beyond. macOS is 10x cost. | Free tier: 400 CI/CD minutes/month. Premium/Ultimate tiers include more minutes and features. Self-managed is free (runners are yours). |
Verdict
Choose GitHub Actions if your code is on GitHub and you want the largest action marketplace. Choose GitLab CI if you want an all-in-one platform with built-in security scanning and better pipeline visualization.
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