The Excel to JSON Converter transforms spreadsheet workbooks (.xlsx and .xls) into structured JSON arrays and object key-value pairs directly inside your browser.

### In-Browser Parsing Architecture Spreadsheet data conversion executes client-side using the compiled SheetJS library without server dependencies: - **Binary Spreadsheet Decoding**: Reads uploaded workbook files into Base64 byte arrays, parsing binary records and shared string tables locally. - **Tabular Mapping**: Automatically treats row 1 as object keys, mapping subsequent table rows into an array of structured JSON objects. - **Data Type Preservation**: Preserves numeric values, boolean flags, and string formatting while parsing null or blank spreadsheet cells cleanly. - **Export & Clipboard**: Formats output with customizable JSON indentation and enables 1-click clipboard copying or direct file download.

### Practical Conversion Example Converting a departmental product inventory spreadsheet with columns **SKU**, **Title**, **Stock**, and **Price**: ```json [ { "SKU": "UB-1049", "Title": "Mechanical Switch Pack", "Stock": 140, "Price": 24.50 }, { "SKU": "UB-2018", "Title": "Coiled USB-C Cable", "Stock": 75, "Price": 18.00 } ] ```

### Honest Processing & Privacy Note All spreadsheet reading, row parsing, and JSON serializing run locally in your web browser memory. No business financial figures, inventory lists, or customer details are uploaded to any server.