Excel to JSON Converter - Convert XLSX/XLS to JSON Free | DataToolings
Convert Excel files (XLSX, XLS) to JSON online for free. Upload your spreadsheet and instantly download the JSON output. No data sent to server, 100% client-side.
Drop your Excel file here, or click to browse
Supports XLSX and XLS files
What is Excel to JSON Converter?
The Excel to JSON Converter is a free online tool that transforms Excel spreadsheets (XLSX or XLS format) into structured JSON data. It reads each row as a JSON object, using the first row as property keys by default. The entire conversion happens in your browser — your file is never uploaded to any server.
How to Convert Excel to JSON
- Upload your XLSX or XLS file by dropping it on the upload area or clicking to browse
- Select which sheet to convert if your file has multiple sheets
- Toggle 'First row as header' to use column headers as JSON keys
- Click 'Download JSON' to save the output, or 'Copy' to copy it to the clipboard
Excel to JSON Features
- Supports XLSX and XLS formats
- Multi-sheet support — choose which sheet to convert
- First-row-as-header option for clean JSON keys
- Pretty-printed JSON output for easy reading
- 100% client-side — files never leave your browser
Excel to JSON FAQ
Is my Excel file uploaded to a server?
No. The conversion happens entirely in your browser using the SheetJS library. Your file is never sent to any server.
What Excel formats are supported?
The tool supports XLSX (Excel 2007+) and XLS (older Excel format). For best results, use XLSX.
Can I convert a specific sheet?
Yes! If your file has multiple sheets, a dropdown will appear allowing you to select which sheet to convert.