Data Processing
CSV Deduplicate Rows
Upload a CSV file or paste CSV text, remove duplicate rows using exact or fuzzy matching, and download a cleaned CSV.
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-deduplicate-rows' \
-H 'Content-Type: application/json' \
-d '{"filename":"csvFile.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-deduplicate-rows' \
-F 'csvFile=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'csvText=name,email,phone
John Doe,[email protected],123-456-7890
John Doe,[email protected],123-456-7890
Jane Smith,[email protected],555-111-2222' \
-F 'deduplicationColumns=email, phone' \
-F 'strategy=first' \
-F 'fuzzyMatching=false' \
-F 'fuzzyThreshold=85' \
-F 'caseSensitive=false' \
-F 'trimValues=true' \
-F 'preserveOriginalOrder=true' \
-F 'outputFileName=crm-clean-list'