Does this JSON formatter send data to a server?

No. Parsing and formatting happen entirely in your browser. Your JSON never leaves your device.

Can this tool fix invalid JSON?

It validates and reports errors but does not auto-repair malformed input. Fix syntax issues and format again.

Prettify adds indentation and line breaks for readability. Minify removes whitespace to produce the smallest valid JSON string.

Very large payloads may slow the browser tab. Typical API responses and config files format instantly.

Paste JSON to prettify it with indentation, minify it to one line, or validate syntax instantly. All processing happens locally in your browser.

Does this JSON formatter send data to a server?: No. Parsing and formatting happen entirely in your browser. Your JSON never leaves your device.
Can this tool fix invalid JSON?: It validates and reports errors but does not auto-repair malformed input. Fix syntax issues and format again.
What is the difference between prettify and minify?: Prettify adds indentation and line breaks for readability. Minify removes whitespace to produce the smallest valid JSON string.
Is there a file size limit?: Very large payloads may slow the browser tab. Typical API responses and config files format instantly.

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