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JSON Minifier

Compress JSON by removing all whitespace and line breaks. 100% client-side.

Paste any JSON document and get a compact, single-line minified version — perfect for shrinking API payloads and reducing storage size.

JSON input
Result 
Output will appear here.

Other JSON tools

JSON Formatter
Pretty-print and beautify JSON with adjustable indentation. Everything runs locally in your browser.
JSON Validator
Check JSON syntax and find errors in seconds. Runs entirely in your browser.

We do not store any of your data.