How to Highlight Duplicates in Google Sheets.If you prefer automation, here’s a little snippet that will remove the duplicates in your active Google Sheet based on data in the first column.
Like with COUNTIF function, Google Sheets will ignore case and formatting when determining duplicates. Click Remove duplicates and your list is clean up in one go. Select which columns to include and whether or not the selected range has any header row. Next, go to the Data menu and choose the Remove Duplicates option. There are two ways to go about it - either use Google Apps script or use the built-in feature of Google Sheets to remove duplicates.įirst, highlight the entire column in Google Sheet that contains the duplicate data. Now that we have figured out a simple method to highlight duplicates in Google Sheets, the next task is to remove all duplicate rows.
If you would like to determine duplicates by comparing data in multiple columns of the Google Sheet, use COUNTIFS instead of COUNTIF.įor instance, if column A is Email Address and column B is Company Name and you would like highlight duplicates cell only when the combination of values in Column A and B is identical, the new formula can be written as =COUNTIFS(A:A, A1, B:B, B1)>1 Remove Duplicate Rows in Google Sheets The new duplicate detection formula reads =COUNTIF($A$1:$C$50, $A1)>1 When we use $A1, we are telling Google Sheet to only change the row but lock the column. In the custom formula,use absolute reference for the range and also change criterion to use $A1 instead of A1. Go to the Apply to Range input box and specify the entire spreadsheet range, not just the column that contains duplicates. However, if you would like the Google Sheet to highlight the entire spreadsheet row that contains duplicate values, we need to slightly tweak the formatting rule. If you’ve noticed in the previous screenshot, only specific cells that have duplicate values are highlighted through conditional formatting. Highlight Entire Row Containing Duplicates Please note that the COUNTIF function is case-insensitive so values like and are seen as duplicates. Or say =COUNTIF(A:A, and it will highlight all email address that end with a gmail address. It can accept wildcard characters too so =COUNTIF(A:A, "apple?") will count cells that contain the word apple or apples. For instance =COUNTIF(A:A, "apple") will count the number of cells that contain the word apple. The COUNTIF function in Google sheets (and Microsoft Excel) essentially counts the number of cells in the range that meet a specific criteria. Under the ‘Format cells if’ section, choose “Custom formula is” from the dropdown list as set the formula as =COUNTIF(A:A, A1) > 1Ĭlick the Done button and you’ll instantly notice that all duplicate cells are highlighted as shows in the screenshot below. In our case, the email addresses are in column A so we can put A:A to specify the entire A column. In the Apply to Range input box, add the range of cells that contain possible duplicates. This will help us change the colors of cells, rows or columns that meet a specific criteria.
Select Conditional Formatting from the expanded menu. Open the Google Sheet containing your data and go to the Format menu. Here’s how you can find duplicates in Google Sheets: You can use Conditional Formatting in Google Sheets combined with the COUNTIF formula to quickly highlight cells that contain duplicate values. That said, the imported mailing list may sometimes have duplicate email addresses and it is thus be a good idea to clean up the data in your Google Sheet by removing duplicates before sending out the emails. You can then use Mail Merge or Document Studio to send personalized emails to your contacts from within the sheet itself. The Email Extractor app pulls emails addresses of your contacts from Gmail into a Google Sheet. The duplicate cells can be easily removed from the spreadsheet with Google Script. How to quickly highlight cells with duplicate values in Google Sheets using conditional formatting.
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