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JSON Minifier

Remove all unnecessary whitespace, newlines, and indentation from JSON to produce the most compact valid representation. Useful before sending JSON in API requests, storing in databases, or embedding in HTML. Also validates your JSON before minifying — any parse errors are reported with position info.

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JSON Minifier: questions

Is minified JSON still valid JSON?
Yes — minification only removes insignificant whitespace (spaces, tabs, newlines between tokens). The data and structure are identical to the formatted version.
How much space can minification save?
For deeply nested or heavily formatted JSON it can reduce file size by 20–50%. The savings depend on how much indentation was used originally.
Does this change key order?
No — JSON minification does not reorder keys. The output is semantically identical to the input.
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