Remove Duplicate Rows from CSV — Free Online Dedup

Exact-match and column-subset deduplication. No install needed.

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What This Tool Fixes

100% exact row deduplication

Column-subset dedup (define uniqueness keys)

Keep first or last occurrence

Shows count of rows removed

Frequently Asked Questions

How do I remove duplicate rows in a CSV without Excel?

Upload your CSV to Structra. Choose exact-row dedup or select which columns define uniqueness. We remove duplicates and show you exactly how many rows were eliminated.

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