YAML Formatter
Format YAML and convert between YAML and JSON when reviewing configuration or exchanging data.
Input
Output
How to use
• Format & Validate: parse and re-indent YAML to canonical form, pinpointing the failing line.
• Sort keys: recursively sort mapping keys ascending / descending.
• To JSON: parse YAML into the equivalent JSON.
• Memory: when on, your last input is saved to local storage.
What does YAML Formatter do?
Format YAML and convert between YAML and JSON when reviewing configuration or exchanging data. Check indentation, structure and resulting field types before deployment.
Interpreting results and common questions
Does YAML-to-JSON conversion preserve every value?
YAML and JSON support different types. Check dates, numbers, strings, aliases and custom tags; conversion success does not establish equivalent data.
References and result limitations
Local results depend on the input and selected options. Retain the input example, format and processing rules when citing a result, and verify the output. Keep keys and other sensitive material out of public examples.
These references explain protocol or format rules; they do not endorse results produced by this site.