Merge Duplicate Rows in Excel Not Just Remove Duplicates
Excel's built-in "Remove Duplicates" deletes your data. We merge duplicate rows - sum numbers, join text, keep latest records. All without formulas.
Upload Data File
Supports .xlsx, .xls or .csv formats
Click to upload or drag file here
Your Excel Data Never Leaves Your Computer
100% browser-based processing means complete privacy and security
100% Local Processing
Your Excel files never leave your browser. All merging happens on your computer, like using a calculator.
Works Without Internet
Once loaded, the tool works completely offline. This proves all processing happens locally in your browser.
No Registration Required
Just upload your file and merge. No email collection, no marketing, no tracking. Pure functionality.
Completely Free
All merge strategies are free. Whether you have 100 rows or 100,000 rows, no limitations or paywalls.
Merge Data Without Learning Complex Excel Formulas
No VLOOKUP, no Power Query, no macros. Just select columns and merge strategies.
Sum Numbers
Sales data, inventory counts automatically added up. No SUM formulas needed.
Join Text
Customer tags, notes automatically merged. Say goodbye to manual copy-paste.
Keep Latest
Order status, update records automatically keep the newest entry.
Calculate Average
Scores, prices automatically averaged. No AVERAGE formulas required.
Get Max/Min
Prices, ratings automatically keep highest or lowest values. No MIN/MAX functions.
Keep First
Keep the first occurrence while merging other columns. Perfect for preserving master records.
Merge Your Excel Data in 4 Simple Steps
From messy duplicates to clean, merged data in under 60 seconds
Upload Excel File
Supports .xlsx, .xls, .csv files
Choose Key Column
Select the column to identify duplicates (e.g., Customer Name)
Set Merge Rules
Choose how to merge: sum, join, keep latest, etc.
Download Merged File
Get your clean, merged Excel file instantly
Excel Merge Duplicate Data - Common Questions
Is my Excel data secure?
Absolutely 100% secure! Files are never uploaded to any server. All processing happens locally in your browser, just like using a calculator.
Are there file size limitations?
Depends on your computer's performance. Generally recommended for files under 10MB and within 100,000 rows for best results. Most customers' data with thousands of rows are processed in seconds.
Which Excel formats are supported?
Supports Excel (.xlsx/.xls) and CSV file formats. Both newer .xlsx and older .xls files can be processed normally.
Will formatting be messed up after processing?
The tool preserves original data values as much as possible, but won't retain cell colors, fonts, or other styles. We focus on data cleaning and organization.