GitHub Actions Validator
Validate GitHub Actions workflow YAML — checks for workflow name, on trigger, jobs section, and correct YAML structure. Identifies formatting issues and missing fields. Code never leaves your device — formatting and validation run locally in your browser.
How to Use the GitHub Actions Validator
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Frequently Asked Questions
What does the validator check?
Valid YAML syntax, required top-level keys (name, on, jobs), correct trigger format, job structure (runs-on, steps), and common mistakes like indentation errors.
Does it check action versions?
The validator focuses on YAML structure and required fields. It does not verify action version pinning or action marketplace availability.
Can it fix issues automatically?
No. It identifies issues with line numbers and descriptions. You must manually edit the YAML to fix the reported problems.
Does it support reusable workflows?
The validator checks standard workflow syntax. Reusable workflows (workflow_call) are validated for correct structure.
Is my YAML data stored?
No. All validation happens locally in your browser. No YAML data is sent to any server.
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Last updated October 2026