Freevexa / JSON Formatter & Validator
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DEVELOPER TOOL

JSON Formatter & Validator

Format, beautify and validate JSON instantly. Everything runs directly in your browser.

🔒 Your JSON never leaves your device.
JSON INPUT Ready
Input 0 characters
Formatted Output 0 characters
⚡

Instant

Format and validate JSON instantly without uploading anything.

✓

Validator

Quickly detect invalid JSON and understand where the problem is.

🔒

Private

JSON processing happens locally inside your browser.

HOW TO USE

How to Use JSON Formatter & Validator

Turn hard-to-read JSON into a cleaner format and check its syntax.

Step 1: Paste your JSON — JSON Formatter & Validator
01

Paste your JSON

Enter the JSON data you want to inspect in the editor.

Step 2: Format or validate it — JSON Formatter & Validator
02

Format or validate it

Run the formatter and look for syntax errors or unexpected values.

Step 3: Copy the cleaned JSON — JSON Formatter & Validator
03

Copy the cleaned JSON

Copy the formatted result and use it in your code, API request or config file.

Quick tip

When JSON fails validation, look around the first reported error for a missing quote, comma or bracket.