Google Sheets Highlight Duplicates icon

Google Sheets Highlight Duplicates

by cws2117.mipo · Tools
Manifest V3 Free
View in Chrome Web Store Data as of 17 Oct 2026

Chrome extension to highlight duplicate values in Google Sheets

Users
237
+24 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#60K
#50K among extensions
Version
1.0.0
updated 27 Dec 2025

Users

monthly, 10 months
0118237Dec 2025Jun 2026Oct 2026
Latest, 17 Oct 2026: 237 usersMove the mouse over the chart for any month

Ratings count

monthly, 10 months
012Dec 2025Jun 2026Oct 2026
Latest, 17 Oct 2026: 2 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Google Sheets Highlight Duplicates

Tired of manually finding duplicate data in your spreadsheets? Our extension helps you highlight replicas in sheets instantly. Whether you are cleaning up contact lists or inventory, this tool makes spotting repeated entries a one-click job. 🚀 This add-on simplifies your workflow by automating google sheet conditional formatting. Instead of digging through menus and writing formulas, just select your data and run the extension. You'll see how to highlight duplicate values in google sheets in seconds. 🛠️ Key Features 1️⃣ One-Click Operation Instantly apply sheets highlight duplicate rules to your selected cells. The extension automatically inserts the correct formula, saving you time. 2️⃣ Works on Any Range Select a single column, a full table, or multiple columns. It's perfect when you need to find within a specific dataset or Copies cells in sheets across the whole sheet. 3️⃣ No Formula Knowledge Needed We handle the syntax. You just click, and the conditional formatting copies rule appears. 💡 Why Use This Extension? Data cleaning is essential for accuracy. Our tool gives you a reliable way to check for duplicates in google sheets. ➤ Save Time: Don’t waste minutes setting up google sheet conditional formatting every time. ➤ Reduce Errors: Avoid typos in manual formulas like =COUNTIF(A:A, A1)>1. Our tool applies the grids duplicate formula perfectly. ➤ Boost Productivity: Focus on analyzing data, not fixing spreadsheet rules. 📊 Common Use Cases Cleaning Email Lists: Use rows columns highlight replicas to find repeated addresses. Inventory Management: Quickly find Look-alikes in google sheets to avoid stocking the same item twice. Survey Analysis: If users submit multiple responses, use highlight duplicate values in google tables to clean your results. Database Management: When importing data often appear. Spot them instantly. ❓ How It Works Using the extension is incredibly simple. Here’s how to highlight Look-alikes in google sheets with our tool: 1. Select the cells you want to check. 2. Click the extension icon. Watch as it applies the google sheets conditional formatting duplicates rule. Repeated values are instantly colored! 🎨 This replaces the manual method where you have to ask how to highlight repeated cells using the native menu. ▸ Multi-Column Support: Easily check for grids highlight duplicates in two columns by selecting them together. ▸ Dynamic Updates: The google sheet highlight duplicates rule remains active. New duplicates will light up immediately! ▸ Safe & Secure: The extension runs entirely in your browser, just automating the conditional formatting formula setup. ✨ Features at a Glance Instant Setup: Highlight duplicate in tables, rows, columns with one click. Visual Feedback: Clear highlighting makes it easy to find duplicates in google sheets. Flexible Range: Works on columns, rows, and blocks. Native Integration: Uses standard rules. 📝 Supported Scenarios Our users often ask: How to check for in a large database? What is the best google sheet duplicate formula? Can I highlight copies values without scripts? How to highlight replicas in google spreadsheet automatically? The answer to all these is YES with our extension! 🎉 🏁 Conclusion Stop struggling with conditional formatting. Install our extension and master how to highlight today. Whether you need to highlight clones values in tables for work or personal projects, this tool saves you time. It handles everything from finding duplicate in sheets to applying the complex conditional formatting formula. Enhance Your Data Hygiene Maintaining pristine datasets is critical for any analysis. When datasets grow, redundancy creeps in, leading to skewed analytics and reporting errors. Our extension functions as a powerful data hygiene assistant, instantly scanning your grids for identical entries. By visually marking look-alikes, you gain immediate insight into the integrity of your information.

Growth

WindowUsersChangeRatingsRating
7 days+7+3.0%00.00
30 days+24+11.3%00.00
6 months+124+109.7%00.00

Chrome Web Store search rankings

Where Google Sheets Highlight Duplicates appears when people search the store, with the 30 day change
Search phrasePosition30 days
feuilles de calcul#25−3
feuilles#39+7
fogli#50+1
hojas#70+3
hoja de cálculo#95−20

Version history

1 versions recorded
1.0.018 Dec 2025

Details

Category
Tools
First seen
18 Dec 2025
Size
565 KB
Languages
de, en, es, fr, it, ru, hi, ja
Pricing
Free
Privacy policy
docs.google.com
Extension ID
iinjogbhlmnnkihkbpiiicmodpppcbde

Permissions and risk

Moderate riskimpact 2, likelihood 2
Permissions
scripting
Site access
https://docs.google.com/spreadsheets/*

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