JSON Minifier
Remove all unnecessary whitespace from JSON for smaller, faster-to-transfer data.
Why minify JSON?
Indented JSON is easy to read, but spaces and line breaks inflate the size. Minified JSON takes less space, transfers faster and is handier in config values, database fields and URL parameters.
Safe minification
The tool validates your JSON first and then rewrites the same data without whitespace. Values, key order and structure are preserved exactly. If the JSON is invalid, you see the error instead of broken output.
How much do you save?
Indented JSON typically shrinks by 10–30% when minified, and even more combined with gzip or brotli compression on the server. Processing happens in your browser.
How to use JSON Minifier
- Paste the JSON to minify.
- The tool validates it.
- A single-line minified output is produced.
- Copy the result.
Why use this tool?
Get compact JSON in one click without any risk of producing invalid data.
FAQ
Does minifying change the data?
No. The JSON is parsed and rewritten; values and structure stay exactly the same.
Can I make minified JSON readable again?
Yes, the JSON Formatter re-indents it.
Can JSON with comments be minified?
Standard JSON doesn't allow comments, so files with comments are treated as invalid.
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