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JSON / YAML Converter

Paste JSON or YAML and convert between formats instantly. Turn on CloudFormation mode to validate template structure. Copy the result and move on.

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JSON / YAML Converter

Validate & convert

Convert between JSON and YAML formats. Validate syntax and optionally check CloudFormation template structure.

Valid

Tips

  • ✔YAML is indent-sensitive: use consistent spacing (2 spaces recommended).
  • ✔CloudFormation templates require AWSTemplateFormatVersion and Resources.
  • ✔JSON is stricter: no trailing commas, keys must be double-quoted.
  • ✔Use this converter to quickly switch between CFN JSON and YAML formats.

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