JSON Minifier
Compress and minify JSON by removing whitespace, newlines, and indentation. Also supports pretty-printing to verify structure.
What is JSON Minification?
JSON minification removes all unnecessary whitespace — spaces, tabs, and newlines — from a JSON document while keeping the data structure intact. The result is a smaller payload that transfers faster over HTTP and uses less storage.
Minified JSON is ideal for production APIs, configuration files embedded in bundles, and any scenario where bandwidth or file size matters. A typical JSON file can shrink by 20–40% after minification, depending on its original indentation depth.
How to Use
Paste your JSON into the input panel, then click Min to minify or Fmt to pretty-print with 2-space indentation. The tool validates the JSON first — if the input is malformed, an error message explains the exact problem.
Use the Copy button to copy the output to your clipboard. The character count is displayed so you can compare input and output sizes at a glance.