JSON Formatter
Pretty print and format JSON data with custom indentation. Make your JSON readable instantly.
Waiting for input...Tool Settings
All processing happens locally in your browser. Large files are handled in memory and never uploaded to any server.
Professional JSON Formatter for Everyone
Our JSON Formatter is a must-have tool for developers working with raw, minified, or messy JSON data. It takes any valid JSON string and transforms it into a beautifully indented, human-readable format. You can customize the indentation level (2 spaces, 4 spaces, or tabs) to match your project's coding standards. Built for speed and privacy, the formatting happens entirely in your browser, ensuring that your sensitive configuration files or API responses never leave your device.
Security Note
All processing happens in your browser. Your images never leave your device.
How to use JSON Formatter?
Follow these simple steps to get the best results.
Paste your raw JSON into the input editor.
Select your preferred indentation style from the settings.
The formatted JSON will appear instantly in the output section.
Use the 'Copy' button to save the result or 'Download' to save as a .json file.
Frequently Asked Questions
Common questions about our JSON Formatter tool.
Does it handle invalid JSON?
If the input is invalid, the formatter will highlight the syntax error and provide information about where the parsing failed.
Is there a size limit?
The tool can handle files up to several megabytes. For extremely large files (over 50MB), browser performance may vary.
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