JSON Formatter
Format, validate, and view your JSON data
How to Use JSON Formatter
- Paste your JSON in the input area
- Use the Format tab to beautify, minify, or validate JSON
- Switch to the Tree Viewer tab to explore JSON as a collapsible tree
- Use the JSONPath field to query and filter specific data
Frequently Asked Questions
What is JSON?
JSON (JavaScript Object Notation) is a lightweight data interchange format. It's easy for humans to read and write, and easy for machines to parse.
How large a file can I format?
Since processing happens in your browser, it depends on your device. Most modern devices handle files up to several MB easily.
Does it validate JSON?
Yes. Invalid JSON will show a clear error message pointing to the issue location, including line and column numbers.
What data types are color-coded in the tree viewer?
Strings are green, numbers are blue, booleans are red, null is gray, and keys are purple. This makes it easy to scan large JSON structures.
What is JSONPath and how do I use it?
JSONPath is a query language for JSON, similar to XPath for XML. Type a query in the JSONPath field to extract specific data. Use $ for the root, .key for child access, [0] for array index, [*] for all items, and .. for recursive search. See our full JSONPath documentation for a complete reference with examples.
Can I copy a path to a specific value?
Yes. In the Tree Viewer tab, hover over any node to see its full path. Click the node to copy its path to your clipboard.