JSON Minifier

Paste formatted JSON and click Minify to strip all unnecessary whitespace. The output is valid, compact JSON ready for API payloads and production use.

Input

Why Minify JSON?

Whitespace in JSON (spaces, newlines, indentation) is meaningless to parsers but adds bytes to every request. Minifying reduces payload size, which speeds up API responses and reduces bandwidth — especially for mobile clients or high-traffic APIs.

The reduction varies. A heavily indented JSON file (4-space indent, deeply nested) can shrink by 30–60% after minification.

Minification Example

Formatted (78 chars):

{
  "name": "Alice",
  "age": 30
}

Minified (26 chars):

{"name":"Alice","age":30}

Related Tools

JSON Formatter — the reverse operation
JSON Beautifier — another name for the formatter
JSON Validator — validate before minifying