JSON to Table Viewer & Converter
Paste JSON data and view it as a readable, sortable HTML table. Handles nested structures, arrays, and large datasets.
Runs in your browser. No data leaves your device.
Frequently Asked Questions
How does the JSON to Table Viewer work?
The tool parses your JSON with JSON.parse(), detects whether the top-level structure is an array of objects or a nested object, and extracts all unique keys as column headers. Each object becomes a table row, with nested values displayed as formatted sub-objects. Sorting is implemented by comparing cell values with a custom comparator that handles strings, numbers, and nulls, then re-rendering the table rows in sorted order.
What JSON formats does it support?
Arrays of objects (the most common format from APIs), nested objects, and mixed structures. The tool automatically detects the structure and creates appropriate columns and rows.
Can I sort the table columns?
Yes. Click any column header to sort the data alphabetically or numerically. Click again to reverse the sort order.
Can I handle large JSON files?
Yes. The table renders efficiently in the browser. For very large datasets, the tool handles thousands of rows without slowing down, since all processing happens client-side.