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Description from extension meta
Quickly compare Excel columns, find duplicates, match two columns, or check unique values. Easy Excel duplicate check tool.
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Description from store
Stop manually scrolling through spreadsheets. Excel Compare Columns is a simple yet powerful Chrome extension that helps you quickly compare values in 2 columns. Whether you’re dealing with product prices, email lists, or exported user data, this tool makes it effortless to find overlaps, changes, or missing values.
You can upload one or two XLSX files, select the lists you want to compare, and instantly get results:
➤ Common values
➤ Unique values in each list
➤ Missing or duplicate entries
Clean interface, fast performance, and no clutter — it’s the easiest way to compare 2 spreadsheets.
No more formulas, no more scrolling, no more headaches. This tool is built for speed, accuracy, and simplicity. Use it to:
1️⃣ Compare 2 columns for differences
2️⃣ Find duplicates
3️⃣ Detect missing values between two lists
4️⃣ Match Excel columns
5️⃣ Highlight changes across exports
Whether your data is in one file or different sheets, this extension handles both.
Key Features
🔹 Upload 1 or 2 files (XLSX)
🔹 Select any sheet and any 2 columns
🔹 Compare values instantly
Switch between:
➤ Common values
➤ Only in first list
➤ Only in second list
🔹 Minimal, clean UI with no distractions
🔹 Works entirely in your browser — no data sent anywhere
This extension is perfect for:
✅ Analysts comparing price lists
✅ Recruiters checking user data exports
✅ Marketers deduplicating leads
✅ Shop owners updating inventory
✅ Students verifying Excel data
✅ Anyone trying to compare 2 lists in Excel without writing formulas
How it helps:
Here’s what you can do with Excel Compare Columns:
▸ Compare two Excel columns for matches
▸ Show missing values in either column
▸ Check columns in Excel for duplicates
▸ Highlight only unique or changed items
▸ Clean up messy data lists
▸ Scan columns in two different sheets
All with just a few clicks. No spreadsheet skills needed.
Use cases you’ll love
➤ Compare product prices in two Excel files
➤ Find changed SKUs or names across versions
➤ Match email lists from different campaigns
➤ Detect duplicates in exported CRM data
➤ Spot missing users in login or signup records
Say goodbye to complex formulas like VLOOKUP or IFERROR.
Just drag and drop your Excel files, and the extension does the rest.
Supported Scenarios
It supports all major comparison needs:
▸ Find matching values between two data sets
▸ Detect differences across lists or sheets
▸ Identify duplicate entries quickly
▸ Highlight missing items in one list
▸ Work across two separate Excel sheets
▸ Spot changes or mismatches at a glance
▸ Locate missing values in merged data
You can compare two lists in Excel exported from entirely different sources — like product databases, user reports, or any structured data.
File Handling Made Simple
➤ Upload one file and pick 2 columns to compare
➤ Or upload 2 Excel files and select one column from each
➤ Supports .XLSX files
➤ List names are auto-detected
➤ Quick preview and fast processing
➤ Even large files are handled gracefully, making this a reliable choice for serious data work.
Works With Other Tasks. This extension complements other common tasks:
▸ Excel diff for two columns
▸ Highlight value changes side by side
▸ Check for duplicates
▸ Visually show mismatched items
▸ Match two fields from separate sheets
▸ Excel duplicate check tool
▸ View matching or duplicate values easily
▸ Finding duplicates in Excel without formulas
If you’ve ever Googled any of the above, this extension is your one-click answer.
✅ No Learning Curve
✅ Just upload your file(s), pick columns, and go.
✅ No formulas. No scripting. No Excel tricks required.
It’s built for non-technical users but powerful enough for professionals.
✅ Secure & Local
✅ Your data never leaves your browser.
✅ Everything happens locally, making it safe for sensitive data.
✅ There are no tracking, and no file uploads to the cloud.
Future Updates Coming. We’re working on:
▸ Dark mode support
▸ Support for Google Sheets
▸ Export results to CSV
▸ Merge column differences
▸ Advanced filtering by partial matches
▸ Have a feature request? We’d love to hear from you!
Related Searches We Help With:
❓ View two lists side by side to spot matches
❓ Excel match two columns without formulas
❓ Check differences between two spreadsheet files
❓ Highlight what's changed between two data sets
❓ Detect duplicate entries across multiple sheets
❓ Compare columns in Excel with one click
❓ Remove duplicates between two lists
📥 Install now and save hours of manual work.
One small extension. One big time saver. Start comparing your Excel columns in seconds!