YAML Formatter / Beautifier

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Format and normalize YAML with consistent indentation and structure.

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About YAML Formatter / Beautifier

Paste your YAML and instantly get a cleanly formatted, consistently indented version. The formatter normalizes indentation by tracking nesting levels based on colons and dashes, ensures lists and mappings are consistently aligned, and trims trailing whitespace from every line — all without requiring external YAML parser libraries.

How to use

  1. Paste your YAML into the input panel.
  2. The formatted YAML with consistent indentation appears instantly in the output panel.
  3. Click Copy to use the normalized YAML in your configuration files.

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Frequently Asked Questions

FAQs about YAML Formatter / Beautifier

Does this validate YAML?

The formatter normalizes indentation and structure but does not perform strict YAML validation. Use a dedicated YAML validator for that.

What indentation does this use?

The formatter uses 2-space indentation for each nesting level, which is the most common convention for YAML files.

Does it handle anchors and aliases?

Basic YAML anchors (&) and aliases (*) are preserved as text. Complex anchors may need manual review after formatting.

Will it remove comments?

YAML comments (lines starting with #) are preserved in the output.

Is my data safe?

All formatting runs in your browser. No data is ever sent to a server.