Is my JSON sent to a server?

No. Formatting, validation, and minification all run in your browser. Nothing is uploaded or logged.

Does the tool support large JSON files?

Yes. Files up to several megabytes format instantly. Very large payloads (50 MB+) may slow the browser since everything stays in memory.

The most common causes are trailing commas, single quotes instead of double quotes, and comments. JSON does not allow any of these.

No. Standard JSON does not permit comments. Strip the comments first, or use a dedicated JSONC parser.

~/makemydev/json-formatter22 tools|6 localesclient-only

Formatters

Format, validate, and minify JSON with syntax highlighting and error reporting.

Input

Output

Output will appear here