How to Highlight Duplicate Values in Google Sheets - Easy Guide

Want to quickly find and highlight duplicate entries in Google Sheets? In this easy step-by-step tutorial, you’ll learn how to highlight duplicate values using Conditional Formatting. Whether you're managing client lists, data entries, or product inventories, this method helps you spot duplicates instantly — no manual work needed. We’ll walk you through how to apply a custom formula using the COUNTIF function, how to format your data range properly, and how to make the duplicate highlighting dynamic so it updates automatically when you change or delete data. This guide works great for highlighting duplicate client names, email addresses, phone numbers, or any repeated value in a column. ✅ Perfect for beginners ✅ No add-ons needed ✅ Works on any device with Google Sheets access 🔍 Topics Covered: How to highlight duplicates in Google Sheets Google Sheets conditional formatting for duplicates Using COUNTIF to find repeated values Auto-updating (dynamic) formatting Clean and manage data easily If this video helped you, don’t forget to like, comment, and subscribe for more simple Google Sheets and Docs tutorials! #GoogleSheets #ConditionalFormatting #HighlightDuplicates #COUNTIF #GoogleSheetsTips #DataCleanup ‪@ClickFixGo‬