JSON Formatter & Validator
Format, validate, and beautify JSON data online. Minify or prettify with customizable indentation!
Paste JSON and click Format to beautify
Embed this Tool on your Website
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<iframe src="https://repo.pk/tools/developer/json-formatter" width="100%" height="600px" frameborder="0" style="border-radius: 12px; border: 1px solid #e5e7eb; mb-4"></iframe>
<div style="text-align: right; font-size: 12px; color: #6b7280;">
Powered by <a href="https://repo.pk" target="_blank" rel="noopener noreferrer" style="color: #3b82f6; text-decoration: none;">Repo.pk JSON Formatter & Validator</a>
</div>Features
- Format & beautify JSON
- Minify JSON
- Validate JSON syntax
- Customizable indentation
- Copy or download output
- Error highlighting
How to Use
- 1Paste your JSON in the input field
- 2Choose indent size (2 or 4 spaces)
- 3Click "Format" to beautify or "Minify" to compress
- 4Copy or download the formatted JSON
About JSON Formatter & Validator
The Free Online JSON Formatter and Validator is an essential utility for developers, data scientists, and engineers who work with API responses, configuration files, and raw data sets. Human-readable JSON is critical when debugging unminified block payloads.
With this tool, you can easily paste your raw, minified JSON and instantly parse it into a clean, strictly formatted structure right in your browser. Since our processing happens entirely on your machine via JavaScript, your sensitive data and API responses never leave your device, ensuring total privacy. You can also reverse the process and minify JSON before using it in production environments for smaller file sizes.
Frequently Asked Questions
What is JSON?
JSON (JavaScript Object Notation) is a lightweight data format used for storing and exchanging data between servers and web applications.
Why format JSON?
Formatted JSON is much easier to read and debug than minified JSON. Use formatting during development and minify for production.
What is minification?
Minification removes all unnecessary whitespace and line breaks, reducing file size for faster data transfer.
How do I validate JSON?
Just paste your JSON and click Format. If there are any syntax errors, they will be displayed below the input.