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YAML Formatter & Validator

Free YAML formatter — paste YAML to beautify with consistent indentation, validate syntax for errors, or convert to JSON. Supports all YAML features including nested objects, arrays, multiline strings, and anchors.

How to Use

  1. Paste your YAML code into the input area.
  2. Click Format to beautify with consistent indentation.
  3. Click Validate to check for syntax errors.
  4. Click To JSON to convert YAML to JSON format.