Paste JSON, then pretty-print or minify it on this device.
Format JSON on this device.
Runs in your browser. JSON never leaves this device.
Paste JSON, then pretty-print or minify it on this device.
Pretty-print, minify, and check JSON locally. Invalid input shows a clear parse error with location when the browser provides one — never a silent rewrite. Free, no account.
No. Formatting and validation use the JSON parser in your browser. The payload stays on this device.
You see “Invalid JSON” with the parser message. When position information is available, the tool also shows line, column, and a short source snippet. Your text is left as it is until you fix it.
Only when you turn on Sort keys. By default, pretty-print and minify keep key order as the browser parsed it.
Yes. It is a free Bento Tools utility with no account required.