Question 1

How does the duplicate remover identify duplicates?

Accepted Answer

You select which columns to check for duplicates. Rows are considered duplicates when all selected columns have identical values. You can check all columns for exact row matches or focus on specific key columns.

Question 2

Can I choose which duplicate to keep?

Accepted Answer

Yes. You can keep the first occurrence, the last occurrence, or remove all duplicates entirely. This gives you control over which version of the data is retained in the output.

Question 3

Does it handle case-sensitive duplicates?

Accepted Answer

By default, comparison is case-sensitive ('Apple' and 'apple' are different). The tool provides options for case-insensitive matching and trimming whitespace to catch more hidden duplicates.

Question 4

How many duplicates can it handle?

Accepted Answer

The tool runs entirely in your browser and can process files with hundreds of thousands of rows. It reports how many duplicates were found and removed, so you know exactly what changed.

CSV Duplicate Remover

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Frequently Asked Questions

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