JSON Formatter Online
Use JSON Formatter Online to format and beautify JSON in seconds. Paste JSON or upload a file to improve readability with proper indentation. Free browser-based JSON formatter.
Click to upload file
Supports .json files
Formatted JSON will appear here after clicking the format button...
What is JSON Formatting?
JSON formatting (pretty printing) adds indentation and line breaks to JSON data so objects, arrays, and values are easier to read, debug, and share.
Benefits:
• Make minified JSON readable again
• Improve debugging and API response review
• Standardize indentation across teams
• Works entirely in your browser
• Copy or download formatted output instantly
Use this JSON formatter when inspecting API responses, cleaning exported config files, or preparing JSON for documentation.
How to Use JSON Formatter Online?
Choose Formatting Options
Pick indentation, key sorting, Unicode escaping, and trailing newline settings before formatting.
Paste or Upload JSON
Enter JSON in the text tab or upload a .json file from the upload tab.
Format the JSON
Click Format JSON to beautify your data using the selected formatting options.
Review Output
Check the formatted JSON in the output panel before copying or downloading.
Copy or Download
Copy formatted JSON to your clipboard or download it as a file.
Frequently Asked Questions - FAQs
Does formatting change JSON data?
Formatting only changes whitespace and line breaks unless you enable Sort keys, which reorders object properties alphabetically without changing values.
Can I minify JSON with this tool?
Yes. Set Indentation to Minified in the formatting options to produce compact single-line JSON.
Can I format minified JSON?
Yes. Paste minified JSON and click Format to expand it into a readable structure.
Is my JSON sent to a server?
No. All formatting happens locally in your browser.
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