JSON Formatter Count

Format, validate, and count elements in JSON data with syntax highlighting and detailed statistics.

Request Feature / Support

4,164+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

User Satisfaction

Worked Example & Common Values

Below is a sample worked calculation demonstrating how JSON Formatter Count processes input data instantly inside your browser.

Sample Input Minified string: {"id":1,"status":"active","roles":["admin"]}

Computed Result

{
  "id": 1,
  "status": "active",
  "roles": [
    "admin"
  ]
}

Execution Mode Client-Side In-Browser JS

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Om dette verktøyet

This JSON Formatter & Counter tool helps developers and data analysts work with JSON data efficiently. It provides multiple formatting options (pretty print, minify, compact), validates JSON syntax, and counts various elements including total objects, arrays, strings, numbers, booleans, and null values. The tool features real-time syntax highlighting, error detection with line numbers, and detailed statistics about your JSON structure. All processing happens client-side for privacy and speed.

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Hvordan bruke

Paste your JSON data into the input textarea or use the sample button to load example JSON.
Select your preferred formatting option: Pretty Print (indented), Minify (compressed), or Compact (single line).
Click the 'Format & Count JSON' button to process your data.
View the formatted JSON with syntax highlighting in the results section.
Check the detailed statistics showing counts of objects, arrays, strings, numbers, booleans, and null values.
Use the 'Copy to Clipboard' button to copy the formatted JSON.
If there are syntax errors, they will be highlighted with line numbers and descriptions.

Frequently Asked Questions

Finn raske svar

Does this tool store or send my JSON data to a server?

No, all processing happens entirely in your browser using JavaScript. Your JSON data never leaves your computer, ensuring complete privacy.

What JSON formatting options are available?

The tool offers three formatting modes: Pretty Print (indented with 2 spaces for readability), Minify (removes all whitespace for smallest size), and Compact (single line with spaces between elements).

What elements does the tool count in JSON?

It counts total objects {}, arrays [], strings, numbers, boolean values (true/false), and null values. It also shows total elements and nesting depth.

Can I format invalid JSON?

No, the tool validates JSON syntax first. If your JSON is invalid, it will show detailed error messages with line numbers to help you fix the issues.

Is there a file size limit for JSON input?

Since processing happens client-side, the limit depends on your browser's memory. For best performance, we recommend JSON files under 10MB.

Need to run multiple calculations?

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