Excel to JSON
Free Local ProcessingFree online Excel to JSON tool. Read each worksheet of an XLSX file and export it as a JSON two-dimensional array (sheets + rows) — handy for development, debugging, and data migration and API integration. Files are processed entirely in your browser and never uploaded.
Drag files here, or
max each 100.0 MB
How to Use
- 1 Select the XLSX file to convert
- 2 Click the "Convert to JSON" button
- 3 Download the JSON file (with sheet name and rows array for multiple worksheets)
FAQ
Q: What does the output JSON structure look like?
The output is an array of objects: each object contains a sheet name and a rows two-dimensional array — one object per worksheet.
Q: How are formula cells handled?
The calculated values are exported, consistent with what Excel displays.
Q: Will large files lag?
We recommend keeping a single file under 100 MB. Processing runs locally, and very large files are limited by browser memory.
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