Does this JSON formatter send my data to a server?

No. Formatting runs in your browser for this tool experience; avoid pasting secrets you do not trust the environment with.

What is the difference between pretty-print and minify?

Pretty-print adds indentation and line breaks so humans can read the structure. Minify removes extra whitespace to produce a compact payload.

Tool

Pretty-print and minify JSON payloads.

Parse and pretty-print JSON text.Inputs are validated on the server. Nothing runs until you submit.