JSON Formatter Tool - Online JSON Parser, Formatter, Compressor, Validator

JSON Formatter Tool Introduction

JSON is a data structure that replaces XML, and it's not worse than XML in terms of description. JSON is just a string, but elements will use specific symbols to mark:

  • {} Double braces represent objects
  • [] Square braces represent arrays
  • "" Double quotes contain properties or values
  • : Colon indicates that the latter is the value of the former (this value can be a string, number, or another array or object)

For example, {"name": "Tom"} can be understood as an object containing a name of Tom, and [{"name": "Tom"}, {"name": "Jerry"}] represents an array containing two objects.

Common Questions and Answers

Why does {name:'json'} fail validation?
According to the official JSON specification, if it's a string, both keys and values should be quoted with double quotes, so the correct format should be {"name":"json"}.

JSON Tool Features

  • JSON formatting: Automatically formats JSON data to make it more readable
  • JSON compression: Removes spaces and line breaks to reduce data volume
  • JSON validation: Checks if the JSON syntax is correct
  • Real-time preview: View formatting results immediately
  • Syntax highlighting: Different types of data are displayed in different colors
  • Error messages: Precisely locates JSON syntax errors
  • Supports large files: Can handle large JSON data
  • One-click copy: Quickly copy formatted content

Use Cases

  • API development: Check the format of JSON data returned by APIs
  • Frontend development: Validate JSON configuration files
  • Data processing: Process and convert JSON data
  • Debugging: Analyze JSON data structures
  • Documentation writing: Generate formatted JSON examples