JSON Formatter & Validator
Free online JSON formatter and validator. Paste your JSON, instantly format, validate, and beautify it. No signup required.
What is JSON Formatter?
JSON (JavaScript Object Notation) is a lightweight data interchange format that is easy for humans to read and write. A JSON formatter helps you beautify minified JSON data, making it readable with proper indentation and structure.
How to Use This JSON Formatter
1. Paste your JSON into the input area or upload a .json file. 2. Choose your preferred indentation (2 or 4 spaces). 3. Click 'Format' to beautify, 'Minify' to compress, or 'Validate' to check syntax. 4. Copy the result or download it as a file.
Common Errors
Missing commas between key-value pairs, trailing commas after the last item, using single quotes instead of double quotes, unquoted keys, and missing closing brackets are the most common JSON errors.
Frequently Asked Questions
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