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Merge CSVs

Combine multiple CSV files into one — the header is kept only once.

🔒 Processed locally in your browser — nothing is uploaded

Drop files here or click to browse

Drop multiple CSV files (same columns)

First row is a header (kept only from the first file)

Free: 5 of 5 files left today · max 10 MB/file — Upgrade to Pro

Remove duplicates after merging? Go to Clean CSV