JSON to One Line

Compress JSON to a single line. Remove whitespace to reduce size.

JSON Input

Upload

{
  "name": "John",
  "age": 30,
  "city": "New York"
}

{
  "name": "John",
  "age": 30,
  "city": "New York"
}

Minified Output

JSON to One Line

Minify and compress your JSON to a single line instantly. Perfect for reducing payload size and storage.

Minify

Reduces file size by stripping unnecessary characters.

Valid JSON

Ensures the minified output remains valid JSON syntax.

Single Line

Converts complex nested structures into a compact one-liner.

Instant

Processing happens instantly in your browser, even for large files.

How this JSON to One Line works

This minification tool compresses structured JSON data into a single line by removing unnecessary whitespace, indentation, and newlines. It effectively reduces the file size of JSON payloads for transmission or storage without altering the data's structure or validity. The tool validates the input JSON before processing to prevent errors. Useful for preparing data for API requests, config files where space is premium, or simply compacting data for copy-pasting into single-line text fields.

How to Use

Paste JSON

Paste your multi-line JSON code.

Minify

The tool automatically removes all extra whitespace.

Copy

Copy the single-line result.

Example Usage

Here's a typical example of how this tool transforms your data:

Input

{ "a": 1 }

Output

{"a":1}

Frequently Asked Questions

Does it change the data?

No, it only removes formatting whitespace. The data structure and values remain exactly the same.

Why minify JSON?

Minified JSON is smaller in size, making it faster to transmit over networks or store in databases.

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The JSON to One Line is maintained by CodeItBro. We aim to provide the best free developer tools on the web. If you have feedback or suggestions, please visit our contact page.