JSON minify

Minify and compress your JSON by removing unnecessary whitespace. Supports JSON5 format with comments and trailing commas.

About JSON Minification

JSON minification removes all unnecessary whitespace, line breaks, and indentation from a JSON document while preserving its structure and data. This process reduces file size, making it more efficient for storage and transmission.

JSON5 Features Supported

This tool uses JSON5 for parsing, which allows for these additional features:

  • Comments (both single and multi-line)
  • Trailing commas in objects and arrays
  • Unquoted object keys
  • Strings can be single or double quoted
  • Numbers can have leading/trailing decimal points
  • Hexadecimal numbers and +Infinity, -Infinity, NaN
  • Multi-line strings with line continuation
Benefits of JSON Minification
  • Reduces file size and bandwidth usage
  • Improves loading times for web applications
  • Makes data storage more efficient
  • Is fully compatible with all JSON parsers
  • Doesn't affect the structure or content of the data
Frequently Asked Questions

Is minified JSON still valid JSON?

Yes, minified JSON is completely valid JSON. Minification only removes unnecessary whitespace and formatting that doesn't affect the data structure.

Can I use comments in my input?

Yes! This tool uses JSON5 for parsing, which allows for comments. However, comments will be removed in the minified output as they're not part of standard JSON.

How much space can minification save?

It depends on the original formatting, but minification typically reduces JSON file size by 25-80%, especially for heavily indented or formatted JSON.

Can minified JSON be reverted to its original format?

The exact original formatting cannot be recovered, but you can use a JSON "prettifier" to add formatting and indentation in a readable way.

Is JSON minification secure?

Yes, minification only affects whitespace, not the actual data or structure. No data is lost or altered during the process.