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Data Processing
Merge multiple CSV files into a single file with options for header handling and deduplication
Execution
Fill in the form, run the tool, and review the result in one place.
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Tool usage guide
The CSV File Merger is a streamlined utility designed to combine multiple CSV files into a single, unified document, offering flexible controls for header management, data deduplication, and custom output formatting.
Background
The analyst receives daily sales CSV files from three different regions, each with identical column structures.
Problem
Manually copying and pasting data from three files is inefficient and prone to human error.
How to use
Upload the three regional CSV files, select 'Use first file headers only', and click merge.
Outcome
A single, clean CSV file containing all regional sales data with a unified header row.
Background
The marketing team has two separate customer lists collected from different events, with some overlapping contacts.
Problem
Sending duplicate emails to the same customer due to overlapping lists.
How to use
Upload both files, set 'Remove Duplicates' to 'Yes', and process the merge.
Outcome
A single, consolidated customer list containing only unique entries, ready for the email campaign.
You can upload and merge up to 5 CSV files in a single operation.
You can choose to use only the first file's headers, merge all unique headers, or include all headers including duplicates.
Yes, you can select TSV (Tab Separated) as the output format in the settings.
Yes, the tool supports comma, semicolon, and tab separators to match your source files.
The total size for all uploaded files must not exceed 50 MB.