Input JSON Data
CSV Preview Result
Tool Guide & CSV/Excel Export Tips
Tool Features
- Pure Frontend Export: All JSON structure parsing and Excel (.xlsx) packaging are completed locally in the browser. No data is uploaded to the server, ensuring maximum security.
- Smart Flattening of Nested Structures: For complex multi-level JSON data (e.g.,
{"user": {"name": "Tom", "age": 20}}), the tool will automatically flatten it by default and convert it into headers with hierarchical prefixes (e.g.,user.name,user.age) for intuitive display in the table. - One-Click Dual Formats: Supports previewing and copying pure text CSV format, and provides native
.xlsxformat download (based on the open-source SheetJS library), perfectly supported in Microsoft Excel or WPS.
Differences between CSV and Excel
- CSV (Comma-Separated Values): A very old, lightweight plain text table format. Rows are separated by line breaks, and columns are separated by commas. The disadvantage is that if the content itself contains commas or line breaks, it is easy to parse incorrectly (the tool has automatically wrapped it with double quotes
"for escaping). - Excel (.xlsx): Microsoft's proprietary rich text table format, supporting multiple Sheet pages, cell styles, formulas, and charts. If your data is large and contains complex text, downloading in
.xlsxformat is highly recommended.