Drop your JSON file here
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.json
Files up to 10MB supported
OR PASTE JSON
View, format, validate and analyze JSON files online. Tree view, syntax highlighting, and data export.
or click to browse files
Navigate JSON with collapsible tree structure. Click any node to copy its JSONPath.
Instantly validate JSON syntax with detailed error messages and line numbers.
All processing happens in your browser. Your data never leaves your device.
Visual badges show data types: strings, numbers, booleans, arrays, objects, null.
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 and generate. JSON is commonly used for APIs, configuration files, and data storage.
Common JSON errors include: missing commas between items, trailing commas after last items, single quotes instead of double quotes, unquoted keys, and missing closing brackets. This viewer highlights the error location to help you fix issues quickly.
JSON is more compact and easier to read than XML. JSON uses key-value pairs and arrays, while XML uses tags. JSON is native to JavaScript and preferred for web APIs. XML supports attributes, comments, and namespaces which JSON doesn't have.
Yes, files up to 10MB are supported. For very large files, the tree view uses virtualization for smooth performance. You can also collapse nodes to reduce memory usage and use the search function to find specific data quickly.
Absolutely. All JSON processing happens entirely in your browser using JavaScript. Your data is never uploaded to any server. This makes it safe to view sensitive configuration files, API responses, or any confidential data.
In Tree view, click on any key or value to copy its full path to clipboard. For example, clicking on a nested property might copy "data.users[0].name". This is useful for debugging and accessing specific values in code.