How to Find And Remove Duplicates in Google Sheets [2026 Full Guide]

In this video, I will show you how to identify and remove duplicate data in Google Sheets to keep your spreadsheets accurate and organized. You’ll learn how to use conditional formatting to visually flag repeats and how to use the built-in data cleanup tools to remove them permanently.

This Google Sheets tutorial will cover:
✅ Finding duplicates using the "Conditional formatting" tool
✅ Setting up a `COUNTIF` custom formula to highlight repeated values
✅ Removing duplicates using the "Data cleanup" menu
✅ Defining data ranges and header settings for accurate cleanup
✅ Understanding how Sheets determines what counts as a "duplicate"
✅ Tips for selecting the correct data range to avoid accidental deletions
By the end of this video, you will know how to maintain clean, reliable datasets by effectively spotting and purging redundant information.

If you’re searching for how to find duplicates in Google Sheets, Google Sheets remove duplicates tutorial, highlight repeated values with COUNTIF, or how to clean up data in Sheets, this video is for you.

💡 Tip: Before running the "Remove duplicates" tool, create a backup of your sheet or copy your data to a new tab; once the tool removes rows, the action can be undone, but having a copy ensures you don't lose information you might need later.

If you have any questions after watching, feel free to ask in the comments and I’ll help you out!

Видео How to Find And Remove Duplicates in Google Sheets [2026 Full Guide] канала Quick Learn Team