> For the complete documentation index, see [llms.txt](https://help.dataimporter.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.dataimporter.io/formatting/deduplicate.md).

# Deduplicate

Select this option when you want to remove duplicates from your source data. You will be able to define the field(s) that you want Dataimporter to look at, when considering whether records are duplicates or not:

<figure><img src="/files/33doWeR8tJRKFK4qOydJ" alt=""><figcaption></figcaption></figure>

By selecting multiple fields, Dataimporter will check both columns, and **only when both columns match, will records be considered duplicates**.

Dataimporter will always perform an exact match when looking at removing duplicates e.g. 'Acme Account' and 'acme account' will not be considered duplicates.