JSON Formatter & Validator
Format, validate, and minify JSON data. Syntax highlighting, clear error messages with line numbers, and easy copy/paste.
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How to Use JSON Formatter & Validator
- Paste your JSON data into the input area or upload a .json file.
- The tool will automatically validate your JSON and show any errors with line numbers.
- Click Format to pretty-print your JSON with proper indentation.
- Click Minify to compress your JSON into a single line.
- Copy the formatted output to your clipboard.
Frequently Asked Questions
What does the JSON formatter do?
It takes raw or minified JSON and formats it with proper indentation and line breaks for easy reading. It also validates your JSON and reports any syntax errors.
What is the difference between format and minify?
Format (beautify) adds indentation and line breaks for readability. Minify removes all whitespace to create the smallest possible file size, ideal for production use.
Can the tool fix invalid JSON?
The tool cannot auto-fix invalid JSON, but it provides clear error messages with details about what went wrong, helping you locate and fix issues manually.
Is my JSON data sent to a server?
No. All formatting and validation happens entirely in your browser. Your data never leaves your device.