Validate GitLab CI Online — .gitlab-ci.yml Structure Checker
Structural checks for stages, jobs and script/trigger. Not a GitLab runner — validation stays in your browser.
Developer notes
• Reserved keys (stages, variables, include, …) are not treated as jobs. • Hidden jobs starting with . skip the script requirement. • extends-only jobs emit a warning in v1. • Does not fetch remote includes or execute pipelines.
When teams pick this route
• Quick check of a pasted .gitlab-ci.yml snippet. • Spot jobs missing script before push. • Teach pipeline shape without a GitLab project. • Pair with format-gitlab-ci after fixes.
Worked examples
Valid stages + unit job
Input
Validation result
Job without script
Input
Validation result
Navigate related CI/CD tools
Format YAML with format GitLab CI, validate Actions with validate GitHub Actions, or browse the CI/CD hub.
GitLab CI validator FAQ
Structural checks only
Same as GitLab CI Lint?
No. We do not call GitLab’s API or simulate a runner. Checks are structural (YAML + jobs/script) in your browser.
Are hidden jobs validated?
Jobs whose names start with . are skipped for the script requirement (templates). Other keys still follow reserved-key rules.
What about pages jobs?
pages is treated as a job and must satisfy script/trigger rules like other jobs.
More CI/CD tools in this cluster
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