What is CSV Add Column?
A CSV add column tool is an online utility that appends new columns to your CSV data with specified names and default values. Whether you're a data engineer preparing datasets, a developer adding metadata fields, or an analyst including calculated columns, our tool adds new columns to the right side of your existing data instantly.
This tool allows you to specify the new column name and optionally provide a default value for all rows. The new column is added to every row, expanding your dataset with additional fields while preserving all existing data.
Why Use CSV Add Column?
Working with CSV data requires efficient tools for data manipulation and transformation. This tool streamlines your workflow by providing instant results without requiring external software or programming knowledge.
Data professionals use this tool to save time on repetitive tasks, maintain data quality, and prepare datasets for analysis or import. The browser-based processing ensures your data remains private and secure.
The tool is particularly valuable when you need quick results, are working with sensitive data that shouldn't be uploaded to external services, or want to avoid installing specialized software for occasional CSV tasks.
Common Use Cases
Metadata Addition: Add columns for timestamps, version numbers, or data source identifiers.
Default Values: Include columns with standard values for all rows, like status flags or categories.
Schema Extension: Expand datasets with new fields before importing into databases.
Data Enrichment: Add placeholder columns that will be filled with calculated or imported values later.
Format Compliance: Ensure CSV files match required schemas by adding missing columns.
How to Use CSV Add Column
Using this tool is straightforward: paste your CSV data or upload a file, configure your desired operation, and get instant results. The tool handles CSV formatting automatically while you focus on your data task.
All processing happens locally in your browser for complete data privacy. You can copy or download the results immediately for use in your projects, reports, or further analysis.