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JSON Formatter Online Free (Fast & Secure) | Codartium

Format and validate JSON instantly in your browser.

JSON Formatter — Codartium
codartium tools input.json
codartium tools output.json
read only
PROBLEMS
OUTPUT
TERMINAL
No problems detected.
0 errors
Ln 1, Col 1
JSON
UTF-8
2 spaces
Codartium Tools

What is a JSON Formatter?

A JSON formatter helps you clean, beautify, and validate JSON data so it is easier to read and debug. It is useful when working with APIs, logs, configuration files, or payloads copied from external services. This tool formats JSON instantly in your browser and highlights syntax issues when the input is invalid.

JSON example

Input: {"name":"Codartium","tools":["json","base64","uuid"],"active":true}
Output:
{
  "name": "Codartium",
  "tools": ["json", "base64", "uuid"],
  "active": true
}
      

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