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JSON Formatter & Validator

Format, beautify, minify, and validate your JSON data. Real-time validation with helpful error messages.

Input JSON
Formatted Output

All JSON Tools

How to Use the JSON Formatter

Our JSON formatter makes it easy to work with JSON data:

  1. 1.Paste your JSON into the input area on the left
  2. 2.Check validation status - you'll see "Valid" or "Invalid" in real-time
  3. 3.Choose your indent size - 2 spaces, 4 spaces, or tabs
  4. 4.Click Format to beautify your JSON with proper indentation
  5. 5.Click Minify to compress JSON by removing whitespace
  6. 6.Copy the result with one click

JSON Formatter Features

  • Real-time Validation: Instantly see if your JSON is valid as you type
  • Error Location: When invalid, see exactly where the error is (line and column)
  • Pretty Print: Format JSON with customizable indentation
  • Minify: Remove all unnecessary whitespace for compact JSON
  • Copy to Clipboard: One-click copying of formatted output

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data interchange format that's easy for humans to read and write, and easy for machines to parse and generate. It's widely used for:

  • API responses and requests
  • Configuration files
  • Data storage and transfer
  • Web applications and mobile apps

Common JSON Errors

Here are some common JSON syntax errors and how to fix them:

  • Missing quotes around keys: All keys must be in double quotes: {"name": "value"}
  • Trailing commas: JSON doesn't allow trailing commas after the last item
  • Single quotes: Use double quotes, not single quotes
  • Unescaped special characters: Backslashes and quotes inside strings must be escaped
  • Comments: JSON doesn't support comments

100% Private - Your Data Stays Local

Unlike other JSON formatters that send your data to remote servers, ZebbyBox's JSON formatter runs entirely in your browser. Your JSON data is never uploaded anywhere, making it safe to format sensitive configuration files, API keys, or any confidential data.

When to Format vs Minify

Format (Beautify) when you need to:

  • Read and understand JSON structure
  • Debug API responses
  • Edit configuration files
  • Document JSON schemas

Minify when you need to:

  • Reduce file size for production
  • Prepare JSON for API requests
  • Store JSON in limited space
  • Improve data transfer speed