About This Tool
Our free online JSON Formatter lets you format and validate JSON data quickly and easily. Whether you're debugging APIs, working with configuration files, or sharing structured data, this tool helps you clean up messy JSON and make it human-readable in seconds.
Paste Your JSON
Formatted JSON
Frequently Asked Questions
Q: What does the JSON Formatter do?
A: It makes compact or unstructured JSON readable by adding proper indentation and spacing.
Q: Can I validate my JSON too?
A: Yes! If the JSON is invalid, we’ll show an error message.
Q: Is this really free?
A: Yes! No cost and no registration needed — just paste and format.
Q: Does it work on large JSON files?
A: It works best on reasonably sized JSON. Extremely large files may affect performance.
Q: Can I download the result?
A: Yes! Click “Download Formatted JSON” to save the output as `.json` file.