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JSON Minifier

Input

JSON7 lines
1
2
3
4
5
6
7

Minified Output

JSON1 lines
1

About the JSON Minify

Minified JSON removes all unnecessary whitespace — critical for API responses, configuration files, and anywhere payload size matters. A minifier strips indentation, newlines, and extra spaces while preserving the exact data.

Paste formatted JSON and get the minified version instantly. Useful for embedding JSON in JavaScript files, reducing API response sizes, or preparing data for environments where whitespace is significant.

How to use

  1. Paste your formatted JSON.
  2. The minified version appears instantly.
  3. Verify the output is valid (the tool validates as it minifies).
  4. Copy the compact result for production use.

Frequently Asked Questions

Does minification change the data? ▾

No — only whitespace (spaces, newlines, indentation) is removed. The actual data, keys, and values remain exactly the same. The output is semantically identical to the input.

How much size does minification save? ▾

Typically 30-50% for formatted JSON. The exact savings depend on how much indentation and whitespace the original had.