By Team Hypomnema · Data & spreadsheets
Remove duplicate rows using selected keys, keep first or last matches and review removed rows separately.
Use the guide alongside the working tool.
Open CSV Duplicate Remover →A workflow to try
Select Email as the key and keep the last occurrence when the newest record appears last. Review removed entries before sharing.Use your own input and inspect the actual preview and exported result before sharing.
When to use CSV Duplicate Remover
Remove duplicate rows using selected keys, keep first or last matches and review removed rows separately.
Select Email as the key and keep the last occurrence when the newest record appears last. Review removed entries before sharing.
Prepare, review and export
Open your table and select one or more columns that identify a duplicate.
Choose first or last occurrence and optional case or whitespace normalization.
Prepare the result. Inspect both kept and removed rows, then export the desired table.
Limits that affect the result
Matching uses the selected column values, not fuzzy similarity. Case and whitespace are preserved unless explicitly ignored. Up to 5 MB, 25,000 rows and 200,000 cells; original files remain unchanged.
Ready to apply this workflow?
Try CSV Duplicate Remover →Explore a related workflow
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Keep your original files and review the result. Found unclear instructions? Contact Team Hypomnema.