Text-Converters

JSON Formatter & Validator

A secure, browser-based tool to beautify (pretty-print), minify, or validate your JSON data. Instantly formats your code for readability or compresses it for production.

Your JSON
Lines: 0Characters: 0
Formatted Output
Characters: 0
About the JSON Formatter

The JSON Formatter is an indispensable tool for any developer working with web APIs or data files. It takes messy, unformatted, or minified JSON and transforms it into a clean, human-readable, indented structure. This "pretty-printing" makes it vastly easier to debug, understand, and verify complex data. Conversely, it can also minify your JSON, stripping out all unnecessary whitespace to create the smallest possible data string for efficient transmission. All operations are performed securely in your browser.

How to Use the Tool

  1. Input JSON: Paste your JSON string into the input area on the left.
  2. Choose Action:
    • Click Beautify to format the JSON with standard indentation for readability.
    • Click Minify to remove all whitespace and create a compact, single-line string.
  3. Review and Copy: The processed JSON will appear in the output box, ready to be copied. The tool also acts as a validator—if your input is not valid JSON, it will display a helpful error message.

Common Use Cases

  • Debugging API Responses: Quickly format a minified API response to understand its structure and find the data you need.
  • Creating API Payloads: Write a JSON object in a readable way and then minify it before sending it in a request.
  • Validating JSON: Check if a string is a valid JSON object before using it in your code.
  • Learning JSON: Understand the structure of JSON—objects, arrays, keys, and values—by seeing it clearly formatted.

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