Insert CSV Columns
Insert new columns into CSV files
Privacy Protected
Offline Processing
Instant Results
Input CSV
Upload CSV File
Drag and drop a file here, or click to select
text/csvtext/plain
Maximum file size: 10MB
Position where to insert the new column (0 = beginning)
Result
How to Use
- Upload a CSV file or paste CSV data in the input area
- Enter the name for the new column
- Enter the default value for the new column (will be used for all rows)
- Specify the position where to insert the column (0 = beginning)
- Click "Insert Column" to process the data
- Download the result or copy from the output area
About This Tool
Insert new columns into CSV files
Privacy & Security
- • All file processing happens locally in your browser
- • Your files never leave your device or get uploaded to any server
- • No data collection, tracking, or storage of your files
- • Works completely offline once the page is loaded
Keywords
csvinsertcolumnsadd