This is a practical comparison based on real production use, not vendor marketing.
Quick Comparison
| Feature | GitLab CI/CD | GitHub Actions |
|---|---|---|
| Config file | .gitlab-ci.yml | .github/workflows/*.yml |
| Runner model | Self-hosted or shared runners | Self-hosted or GitHub-hosted |
| Container registry | Built-in | GitHub Packages |
| Security scanning | Built-in (SAST, DAST, deps) | Via marketplace actions |
| Environments | Built-in with approvals | Environments with protection rules |
| Marketplace | Limited | 20,000+ actions |
| Pricing | Minutes-based (shared) | Minutes-based (hosted) |
When to Use GitLab CI
- Code is on GitLab and you want everything integrated (CI/CD, registry, security, monitoring)
- Self-hosted runners are mandatory (air-gapped environments)
- Need built-in security scanning without third-party tools
When to Use GitHub Actions
- Code is on GitHub (path of least resistance)
- Need marketplace ecosystem (20K+ pre-built actions)
- Want GitHub-hosted runners (zero maintenance)
Both are excellent CI/CD platforms. The choice typically follows where your code lives.
My Recommendation
Use GitLab CI for all-in-one DevSecOps on GitLab. Use GitHub Actions for GitHub repositories with rich marketplace integrations. See the full analysis at GitHub vs GitLab. Book a consultation to optimize your CI/CD.
