Data Processing
CSV / Excel Diff Tool
Compare two CSV or XLSX datasets and export a PDF report with row, column, and cell-level differences
file· File resultOpen tool
Quick start
Call this tool from your code in three languages.
cURL
# 1) Request a presigned URL → returns { uploadUrl, storageKey }
curl -X POST 'https://api.elysiatools.com/api/upload/presign/csv-excel-diff-tool' \
-H 'Content-Type: application/json' \
-d '{"filename":"leftFile.ext","contentType":"application/octet-stream","size":12345}'
curl -X POST 'https://api.elysiatools.com/api/upload/presign/csv-excel-diff-tool' \
-H 'Content-Type: application/json' \
-d '{"filename":"rightFile.ext","contentType":"application/octet-stream","size":12345}'
# 2) PUT the file bytes directly to the presigned uploadUrl
curl -X PUT '<presigned uploadUrl>' \
--data-binary @/path/to/file.ext
# 3) Call the tool, passing the returned storageKey for each file field
curl -X POST 'https://api.elysiatools.com/en/api/tools/csv-excel-diff-tool' \
-F 'leftInput=id,sku,price,status
1,A-100,29.99,active
2,A-200,45.00,active' \
-F 'leftFile=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'leftSheetName=Sheet1' \
-F 'rightInput=id,sku,price,status
1,A-100,29.99,active
2,A-200,49.00,active
3,A-300,15.00,draft' \
-F 'rightFile=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'rightSheetName=Sheet1' \
-F 'keyColumns=id' \
-F 'compareMode=all' \
-F 'reportTitle=Pricing Snapshot Diff'