Secure server processing

Convert Excel XLSX to JSON

Extract Excel spreadsheet data into a structured JSON array of objects.

Selecting a file does not upload it. Upload and convert sends it to temporary server storage. One file at a time; 25 MiB maximum.

Drop files here or click to upload

Supported formats: .xlsx

Choose Files

Max 25 MB per file•Up to 1 files

Uploaded only after you choose Upload and convert; temporary server processing

How it works

Select an XLSX workbook.
Upload and convert to JSON.
Download the formatted JSON document.

The worker reads row headers and creates a clean JSON array where each object corresponds to a row in your spreadsheet.

Supported documents and limitations

XLSX only. Maximum 50,000 rows. Active sheet only.

Temporary server processing

Your file is uploaded only when you choose to convert. An isolated worker processes it without network access. Uploaded files expire after one hour; completed outputs expire one hour after completion. Failed, cancelled or deleted jobs become eligible for immediate cleanup. Service outages can delay physical deletion; a previously issued download link can remain valid briefly. Clear files to request early deletion. Downloads saved on your device remain there.

PDF processing is limited to 200 pages; HTML and reverse conversions have the stricter limits listed above. Complex files may reach time, memory or scratch limits sooner. No malware-free, perfect-fidelity or certified-accessibility claim is made.