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YAML Formatter

Free

Paste YAML content to format and validate it. Optionally convert YAML to JSON or JSON to YAML. Great for Kubernetes configs, CI/CD pipelines, and Ansible playbooks.

How to Use YAML Formatter

  1. 1

    Paste your YAML content into the input panel. The formatter validates and reformats it with consistent indentation automatically.

  2. 2

    If your YAML has syntax errors, they are highlighted with a clear description of the issue.

  3. 3

    To convert YAML to JSON, click the "Convert to JSON" button. To go from JSON to YAML, paste JSON and click "Convert to YAML".

  4. 4

    Copy the formatted or converted output using the clipboard button.

Features

  • ✓ YAML validation
  • ✓ YAML ↔ JSON conversion
  • ✓ Syntax error highlighting

Frequently Asked Questions

Will it change my key order?

The formatter normalises whitespace and indentation but preserves the original key order.

What is YAML to JSON conversion useful for?

Converting Kubernetes configs, CI/CD pipeline definitions, or Ansible playbooks to JSON for use with APIs or tools that do not support YAML natively.