Format, validate, and inspect YAML data directly in your browser.
It parses YAML to verify its syntax and then outputs a consistently formatted YAML document.
The tool displays a validation error with information from the YAML parser instead of producing misleading output.
Yes. Maps, sequences, strings, numbers, booleans, and nested structures are supported.
Comments can be accepted as input, although parser-based reformatting may not preserve every original comment or layout choice.
No. Parsing and formatting are performed in your browser.
Yes. A sample button is included so you can quickly test the formatter and validator.