littlekit.
Private by design

JSON Minifier

Parses strict JSON and removes insignificant formatting whitespace.

Your inputs stay in your browser. No account required.
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How json minifier works

Parses strict JSON and removes insignificant formatting whitespace.

Try an example

{ "a": 1 } → {"a":1}.

Good to know

Input stays in this tab and is never sent to analytics. Limit 100,000 characters. No input is executed. Number precision and duplicate-key caveats are the same as JSON.parse.

Your privacy

Processing happens on this device. We do not upload your input, put it in share links or save it to your favourites. Closing this tab discards the working input; downloaded results remain wherever you save them.

A useful next step

Made for clarity. Built to be useful.Report an issue