How to Find Duplicates in Google Sheet

Sanskar Tiwari

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Learn how to easily find and highlight duplicate entries in Google Sheets using simple methods

Finding duplicates in a dataset is crucial for keeping your records clean and accurate. Whether you're working with contact lists, survey responses, product inventories, or sales data, duplicate entries can lead to confusion and errors.

Google Sheets offers multiple methods to identify and manage duplicate data from built-in features to custom formulas and conditional formatting.

In this post, we’ll walk you through the easiest and most effective ways to spot duplicates in your sheet, helping you stay organized and error-free.


How to Find Duplicates in Google Sheets | Step-by-Step Tutorial

Method 1: Using Conditional Formatting

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Method 2: Using the UNIQUE Function


Method 3: Using a Helper Column with COUNTIF


Conclusion

Google Sheets offers flexible options to find and highlight duplicate entries, making it easier to clean up and maintain your data.

Whether you prefer visual cues or formula-based solutions, these methods help you ensure accuracy and avoid costly mistakes in your spreadsheets.


FAQs can come handy!

Can I remove duplicates automatically in Google Sheets?

Yes! Use Data > Data cleanup > Remove duplicates to delete repeated entries.

Will conditional formatting update if new duplicates are added?

Yes, conditional formatting is dynamic and updates automatically as you modify the data.

Can I find duplicates across multiple columns?

Yes, but you need to combine the columns using a formula like =A2&B2 before checking for duplicates.

What if I want to find duplicate rows instead of cells?

Use a helper column to join all values in the row (e.g., =A2&B2&C2) and then apply a COUNTIF.


About the author

Sanskar Tiwari profile photo
Sanskar TiwariFounder at SheetAI & Google Sheets Expert

Sanskar is Founder at IAG Tech and creator of SheetAI. With over 3 years of experience building AI-powered spreadsheet tools, he has helped 100k+ users master Google Sheets automation and advanced formulas. He has built 24+ productivity products and teaches spreadsheet optimization on YouTube.