Remove unnecessary whitespace from JSON without rounding numbers or changing strings, members or array order.
Input
Paste JSON or import a UTF-8 file up to 100 MB. Text up to 1,048,576 characters can be edited here.
0 characters · Input is editable.
Only whitespace outside strings changes. Large integers, exponent notation, negative zero, escapes and duplicate object members are preserved. Consuming applications may interpret them differently.
Output
Your result will appear here after processing.
Your JSON stays in this browser. No account required.
Frequently Asked Questions
Is JSON minifying with PDFPilot really free?
Yes. JSON Minifier is completely free to use, with no sign-up or account required.
Are my files uploaded to a server?
No. The minifying runs entirely in your browser. Your file is never uploaded to PDFPilot's servers.
Why minify JSON?
Removing whitespace shrinks the file size for production use — configuration files, API responses, or any JSON shipped over a network benefit from not carrying formatting whitespace.
Does minifying change my data in any way?
No — only whitespace is removed. Keys, values, and their order are preserved exactly.
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