#json

Format and validate YAML, convert YAML to JSON, or paste JSON to get YAML. Errors show the line and column of the first problem.

Validate JSON and find the first syntax error by line and column, with a caret under the spot. Duplicate keys and trailing commas fail.

Format, beautify or minify JSON. Keeps key order unless you sort keys, rejects duplicate keys, and points to the first syntax error.