Processed in your browser
JSON Formatter Online
Paste JSON to format it into readable, indented output.
Paste JSON to format.
Output appears here.
Why use JSON Formatter?
- Format, validate, encode, or decode text directly in your browser.
- Keep common developer utilities available without opening a heavy editor or separate app.
- Use clear error messages to fix malformed data faster.
Common use cases
API debuggingData cleanupEncoding checksReadable code review
How to use JSON Formatter
1
Paste JSON.
2
Format the data.
3
Copy the readable output.
Frequently Asked Questions
Does this JSON formatter upload my data?
No. Formatting runs in your browser.
Will invalid JSON format?
Invalid JSON will show an error so you can fix it.
Can I minify JSON?
This page focuses on formatting and validating readable JSON. A dedicated JSON minifier can be added as a related tool.