Format · Developer

YAML Formatter

Beautify and validate YAML — then copy JSON if you need it.

How to use

  1. Paste YAML.
  2. Fix formatting or read the error.
  3. Copy YAML or the JSON equivalent.

Features

  • Validate YAML 1.2 via js-yaml
  • Pretty dump
  • JSON export
  • Runs in your browser. Inputs are not uploaded to ToolsWeb servers.

Privacy & how it works

This developer utility runs in your browser with JavaScript and Web APIs. Your text, tokens, and secrets are not uploaded to ToolsWeb servers for this tool. Privacy Policy.

FAQ

Does this support anchors and aliases?expand_more

js-yaml resolves common constructs. Prefer noRefs output for portable dumps.

Is this tool free?expand_more

Yes. No signup and no paywall for core use.

Is my text uploaded?expand_more

No for this tool. Text stays in your browser while you work.

Do I need an account?expand_more

No. Open the page and start typing or pasting.

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