CSV Deduplicate | XLToolLab

Remove duplicate CSV rows by whole row or by a selected column and show how many records were removed.

Click or drag table files here to upload

Upload one file. Processing stays in the browser.

Choose file

Uploaded table files will appear here.

Paste Input

Deduplication mode

0 filesTotal size: 0KBActive input: -

Result Preview

Load data first and generate a result. The preview will appear here.

Upload or paste CSV input.

Choose whole-row deduplication or select a column key.

Preview the resulting table and download the deduplicated CSV.

Deduplicate email lists, phone numbers, or order IDs.

Clean duplicate records before sending out bulk exports.

Quickly validate merged list quality.

The first occurrence is preserved by default.

Yes. The results area shows how many duplicates were removed.

Yes, as long as the header row parses correctly.