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CSV Merger

Professional CSV merger with instant merging. Combine multiple CSV files instantly.

Instant Merging
100% Private
Completely Free

Drag & drop CSV files here

or click "Add File" button to select files

Your privacy is protected! No data is transmitted or stored.

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Real-World Use Cases

When You Need CSV Merger

Common scenarios where CSV merging is essential

Employee Data Consolidation

Combine employee records from multiple departments or branches into a single comprehensive database for HR management.

Sales Data Analysis

Merge sales reports from different regions or time periods to analyze overall performance and identify trends.

Customer Database Consolidation

Combine customer information from multiple sources to create a unified database for better customer insights and analytics.

Survey Response Compilation

Merge survey responses from multiple batches or sources for comprehensive data analysis and reporting.

Financial Data Integration

Combine financial records from different departments or time periods for accurate financial reporting and auditing.

Database Migration

Merge CSV exports from different database systems for seamless data migration and consolidation.

FAQ

Frequently Asked Questions

Find answers to common questions about CSV merging

Simply upload or drag & drop your CSV files into the merger tool. Select your preferred merge mode (by rows or columns), click the "Merge Files" button, and download your combined CSV file. It's that simple!

Merge by Rows: Stacks files vertically, appending rows from each file below the previous one. Use this when you have data from different time periods or batches.

Merge by Columns: Combines files side-by-side, adding columns from each file. Use this when you have related data split across multiple files.

Each individual CSV file can be up to 10MB in size. You can merge unlimited files as long as each file is within this limit. The merged output size depends on the total data being combined.

Yes! Our CSV Merger is 100% client-side, meaning all processing happens in your browser. Your data is never sent to any server and is not stored anywhere. Your privacy is completely protected.

Yes! When merging by rows, files with different columns will be combined as-is. When merging by columns, files with different row counts will be padded with empty cells to maintain alignment. The tool handles mismatched structures gracefully.

We support CSV (.csv) and plain text (.txt) files. The tool automatically detects the delimiter (comma, semicolon, tab, or pipe) used in your files for accurate parsing and merging.

Absolutely! After clicking "Merge Files", you'll see a live preview of your merged data in a table format. You can review the results before downloading or copying to clipboard.

Simply click the "Remove" button next to any file in the selected files list. The file will be removed and the preview will automatically update if files were already merged.
Powerful Features

Everything You Need, Zero Hassle

Merge CSV files with our powerful merger

Multiple Files

Merge multiple CSV files at once. Unlimited files!

Two Merge Modes

Merge by rows or columns. Choose what works best!

Copy & Download

Copy merged CSV or download as file. Perfect for projects!

How It Works

Simple, Fast, Effortless

Merge CSV files in just a few clicks

01
Add Files

Upload or drag & drop multiple CSV files.

02
Choose Mode

Select merge by rows or columns.

03
Merge

Click merge button to combine files.

04
Download

Copy or download merged CSV file.