Highlight Duplicates Using Macros In Excel

Want to learn how to highlight cells that are duplicates and learn macros at the same time? Let me show you how to highlight duplicates using Macros in Excel!

Make sure your Excel has the Developer Tab enabled following this tutorial.

I explain how you can do this below step by step!

What does it do?

Highlights all cells with duplicate values in a selected range

Copy Source Code:

Sub HighlightDuplicates()

Dim cells As Range
Dim cell As Range
Set cells = selection

'Loop through each cell in your selected range looking for duplicates
For Each cell In cells

'Highlight with a color of your choice,  if that cell has duplicate values
If WorksheetFunction.CountIf(cells, cell.Value) > 1 Then
cell.Interior.ColorIndex = 36
End If
Next cell

End Sub

Final Result: 

Exercise Workbook:

---

STEP 1: Go to Developer > Code > Visual Basic

 

STEP 2: Paste in your code and Select Save. Close the window afterwards.

 

STEP 3: Let us test it out! Make sure to have your cells selected.

Open the sheet containing the data. Go to Developer > Code > Macros

 

Make sure your macro is selected. Click Run.

 

With just one click, all of the duplicate cells now have been highlighted!

 

How to Highlight Duplicates Using Macros in Excel