Compare Excel Files Online
Side-by-side Excel comparison with instant highlighting.
Your data never leaves your browser. 100% Private.
Your data never leaves your browser. 100% Private.
Key Features for Comparing Excel Files Online
Free & No Installation
Enjoy a powerful, professional-grade comparison tool completely for free—no software to install, no accounts to create, just open and use.
100% Private & Secure
Your files are processed strictly within your browser and never uploaded to any server, ensuring your sensitive business data stays on your device.
Support for .xlsx, .xls and .csv
Seamlessly compare a wide range of spreadsheet formats, including .xlsx, .xls, and .csv, without the need for manual conversion.
Smart Synchronized Scrolling
Automatically syncs the view of both spreadsheets as you scroll, keeping rows perfectly aligned so you can compare data side-by-side effortlessly.
Cell-Level Difference Highlighting
Changes, additions, and deletions are color-coded instantly, helping you spot even the smallest discrepancies at a simple glance.
High-Speed Performance
Optimized to handle massive spreadsheets smoothly, giving you fast and lag-free comparisons regardless of file size.
No More Spreadsheet Headaches
See how professionals save hours and eliminate manual work
Financial Controller
Finally, a tool that doesn't require installation! My company IT policy is strict, so being able to run this safely in the browser is a lifesaver.
Office Manager
I used to print out two Excel sheets and compare them with a highlighter. This tool saved my eyesight and my sanity. Incredible.
Marketing Director
I initially came for the visual diff, but the 'Column Comparison' feature is a hidden gem for checking email lists for duplicates.
CRM Specialist
It's not just about finding differences; it's about verifying what matches. The intersection tool helped me merge two client lists effortlessly.
Supply Chain Analyst
The side-by-side scrolling is buttery smooth. It feels just like looking at one sheet. Found a hidden price change in seconds.
Sales Operations
I tried writing formulas to catch differences but always messed them up. Visual highlighting is so much more intuitive. Highly recommend.
Financial Controller
Finally, a tool that doesn't require installation! My company IT policy is strict, so being able to run this safely in the browser is a lifesaver.
Office Manager
I used to print out two Excel sheets and compare them with a highlighter. This tool saved my eyesight and my sanity. Incredible.
Marketing Director
I initially came for the visual diff, but the 'Column Comparison' feature is a hidden gem for checking email lists for duplicates.
CRM Specialist
It's not just about finding differences; it's about verifying what matches. The intersection tool helped me merge two client lists effortlessly.
Supply Chain Analyst
The side-by-side scrolling is buttery smooth. It feels just like looking at one sheet. Found a hidden price change in seconds.
Sales Operations
I tried writing formulas to catch differences but always messed them up. Visual highlighting is so much more intuitive. Highly recommend.
Warehouse Manager
It handles large files surprisingly well. I uploaded a 5,000-row inventory list and the comparison was instant. Great performance.
CPA
As an accountant, data privacy is my #1 concern. Knowing that my files are processed locally and never uploaded to a server gave me the confidence to use this tool.
Business Analyst
Goodbye VLOOKUP errors! I used to spend hours debugging formulas just to compare two monthly reports. Now it's a drag-and-drop job.
Project Lead
The 'No Formulas' promise is real. I don't need to be an Excel wizard to spot the discrepancies in our quarterly budget anymore.
Data Entry Clerk
I love that it ignores formatting changes and focuses on the actual data. Other tools highlight everything just because a font is bold. This one is smart.
Product Manager
Comparing version 1 and version 2 of our product specs used to be a nightmare. This tool highlights the deleted rows clearly so nothing gets lost.
Warehouse Manager
It handles large files surprisingly well. I uploaded a 5,000-row inventory list and the comparison was instant. Great performance.
CPA
As an accountant, data privacy is my #1 concern. Knowing that my files are processed locally and never uploaded to a server gave me the confidence to use this tool.
Business Analyst
Goodbye VLOOKUP errors! I used to spend hours debugging formulas just to compare two monthly reports. Now it's a drag-and-drop job.
Project Lead
The 'No Formulas' promise is real. I don't need to be an Excel wizard to spot the discrepancies in our quarterly budget anymore.
Data Entry Clerk
I love that it ignores formatting changes and focuses on the actual data. Other tools highlight everything just because a font is bold. This one is smart.
Product Manager
Comparing version 1 and version 2 of our product specs used to be a nightmare. This tool highlights the deleted rows clearly so nothing gets lost.
Freelance Bookkeeper
Efficient, private, and free. It's become an essential part of my end-of-month reconciliation process.
HR Specialist
Simple, fast, and does exactly what it says. No complex setup, just upload and see the red and green highlights. Perfect for non-techies like me.
E-commerce Manager
Most tools fail when rows are sorted differently. This tool's ability to match rows by ID (Key) saved me from manually sorting 10,000 lines.
Retail Owner
I had two price lists with different item orders. The Key-Value comparison aligned them perfectly and showed me exactly which prices increased.
Operations Coordinator
Whether I need a quick visual check or a deep column analysis, this site covers all my comparison needs. It's my bookmark for everything Excel.
Logistics Coordinator
Fastest way to clean up data. I use it to compare my master list with the vendor's list to see what's missing. Works like a charm.
Freelance Bookkeeper
Efficient, private, and free. It's become an essential part of my end-of-month reconciliation process.
HR Specialist
Simple, fast, and does exactly what it says. No complex setup, just upload and see the red and green highlights. Perfect for non-techies like me.
E-commerce Manager
Most tools fail when rows are sorted differently. This tool's ability to match rows by ID (Key) saved me from manually sorting 10,000 lines.
Retail Owner
I had two price lists with different item orders. The Key-Value comparison aligned them perfectly and showed me exactly which prices increased.
Operations Coordinator
Whether I need a quick visual check or a deep column analysis, this site covers all my comparison needs. It's my bookmark for everything Excel.
Logistics Coordinator
Fastest way to clean up data. I use it to compare my master list with the vendor's list to see what's missing. Works like a charm.
FAQ about Excel File Comparison
Have another question? Contact us at support@excelcompare.org
What is the best way to compare two Excel files for differences online?
ExcelCompare offers the most intuitive solution. Unlike manual checking, our tool automates the process. Simply upload your original and modified sheets, and the system will instantly identify data discrepancies. It acts as a visual "diff tool" specifically designed for spreadsheets, making it the best tool to compare two Excel files without complex setups.
How do I compare sheets side by side without extra software?
You don't need to install heavy desktop software. ExcelCompare runs directly in your browser. It features smart synchronized scrolling, meaning when you scroll one sheet, the other moves automatically. This allows for a perfect side-by-side comparison of rows and columns to spot changes immediately.
Can this tool automatically highlight changes between Excel spreadsheets?
Yes. Our engine is designed to automatically highlight changes with distinct colors. Modified cells, added rows, and deleted data are color-coded (e.g., green for additions, red for deletions). This visual approach is much faster than standard Excel formulas for finding data discrepancies.
Is it safe to use free online services to compare Excel files?
Most online converters upload your data to a server, which is a risk. However, ExcelCompare is unique: we use client-side processing technology. Your data never leaves your computer; the comparison happens entirely within your browser. It is the most secure way to compare Excel sheets for differences online.
Can I compare large Excel files with thousands of rows?
Yes. Our engine is optimized for high performance. Whether you need to compare large Excel files or simple lists, the tool handles heavy datasets smoothly without the lag often seen in other web apps. We support files with extensive row counts, ensuring you can analyze big data efficiently.
Is ExcelCompare completely free to use?
Yes, we are one of the few truly free online services to compare Excel files. There are no hidden subscription fees, no "Pro" versions for basic features, and no credit card required. You get full access to professional comparison features at no cost.