JSON Formatter & Validator

Formatting, minifying and validating JSON

Format re-indents your JSON so nested objects and arrays are easy to read. Minify strips every unnecessary space and line break, which is what you want when sending data over a network. Validate only checks the syntax and reports the first problem it finds.

Common JSON mistakes

• A trailing comma after the last item in an object or array.
• Single quotes instead of double quotes around keys and strings.
• Unquoted keys, which are valid in JavaScript but not in JSON.
• Comments — JSON has no comment syntax.

Reading the error message

When parsing fails, the tool converts the character position into a line and column so you can jump straight to the problem in your editor.