{ }JSON Formatter
JSON (JavaScript Object Notation) is the most widely used text-based data format for exchanging data in web development. You'll commonly encounter it in API responses, configuration files, and database documents. However, minified JSON data is hard for humans to read, and structural errors can be difficult to spot. This tool prettifies JSON data, validates syntax in real time, and lets you explore the data as a tree structure. All processing happens in your browser, so your sensitive data stays safe.
How to Use
- 1Enter JSON
Paste JSON data directly into the left input area, drag and drop a file, or load from a URL. You can also click 'Load Example' to quickly try a sample.
- 2Configure Format Options
Choose indentation (2 spaces, 4 spaces, or tab) and JSON spec (RFC 8259 standard, ECMA-404, or JSON5 extended). Enable 'Auto-format' to format instantly as you type.
- 3Review Results
View the formatted JSON in the right panel. Validation status is shown in the status bar, with specific error messages if any issues are found.
- 4Check Stats & Copy
The stats area shows counts of objects, arrays, strings, numbers, and nesting depth. Copy the result to clipboard or download as a file.
Tips
- ๐กWhen debugging APIs, paste the response JSON to quickly understand its structure at a glance.
- ๐กThe 'Auto Fix' feature automatically corrects common JSON errors like trailing commas and single quotes.
- ๐กSelecting JSON5 spec enables extended syntax including comments, trailing commas, and unquoted keys.
- ๐กEven large JSON files are processed entirely in your browser โ no data is ever sent to a server.