Skip to content
HeyTools

Developer Tools

YAML Formatter

Paste YAML to format, validate, and beautify it instantly in your browser. Free online YAML formatter.

Loading tool…

How to use

  1. Paste your YAML
  2. Choose indentation
  3. Copy the formatted result

Next step

  • YAML Validator

    Paste YAML to validate syntax instantly in your browser. Free online YAML validator with clear error messages.

  • YAML to JSON

    Paste YAML and get formatted JSON for APIs, tests, or documentation. Conversion stays local in your browser.

  • JSON Formatter

    Paste JSON to format, validate, and beautify it instantly in your browser. Free online JSON formatter.

Frequently asked questions

Does my YAML leave my device?

No. Formatting runs entirely in your browser. Nothing is uploaded to our servers.

Can I minify YAML too?

Set indentation to 0 to produce compact YAML output on a single line where possible.

Can I share my YAML?

Yes. Use Share link to copy a URL with your input and indent settings (large payloads may be omitted from the URL).