Skip to content

JSON Minifier

Remove optional whitespace from valid JSON.

Your input is processed locally in your browser. It is not saved, logged, or sent with analytics.

0 chars
Run: Ctrl/⌘ + Enter · Clear: Ctrl/⌘ + Shift + X

Minified JSON

Enter a value to begin.

What this calculator does

Parse and compact JSON into a smaller single-line representation entirely in your browser.

Inputs and what they mean

JSON
text value.

How to use it

  1. Paste or enter content in the editor.
  2. Adjust any options for the result you need.
  3. Copy or download the locally processed output.

Formula

Parses JSON, then serializes it without optional whitespace.

Worked example

Minify formatted JSON

Remove formatting whitespace while preserving JSON values.

Reading the result

The minified json appears in the output box and can be copied straight out. Nothing you paste leaves your browser.

Limitations and assumptions

Results depend entirely on the figures you enter and are rounded for display. They are for general information and education, not professional advice.

Common questions

Related tools

Format JSON into clean, readable indentation locally.

Developer Tools

Check JSON syntax and see clear parsing errors locally.

Developer Tools

Encode Unicode text as standard Base64.

Developer Tools

Decode valid Base64 into Unicode text.

Developer Tools

Percent-encode text for use in a URL component.

Developer Tools

Decode percent-encoded URL text safely.

Developer Tools