YAML Validator

Validate YAML syntax and convert YAML to JSON online. Check your YAML files for errors, view parsed data instantly. Free, fast, and secure — all processing happens in your browser.

📖 About YAML

What is YAML?
YAML (YAML Ain't Markup Language) is a human-readable data serialization format. It's commonly used for configuration files, Docker, Kubernetes, and CI/CD pipelines.

  • ✅ Indentation with spaces (not tabs)
  • ✅ Key: Value pairs
  • ✅ Lists start with - (dash)
  • ✅ Comments start with #
  • ✅ Case-sensitive

💡 Common Uses

  • Docker Compose files
  • Kubernetes manifests
  • CI/CD configs (GitHub Actions)
  • Ansible playbooks
  • Application settings

🔗 Related Tools:
JSON to CSV — Convert JSON data
XML Formatter — Format XML data