Insert a CSV Column

Insert a CSV Column lets you add a new column with a custom header and value at any position in your CSV. It’s fast, live, and file-friendly.

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How to Use:

Paste your CSV into the left box or upload a file. Then set the new column’s header, its value for all rows, and the index where it should appear. The result updates automatically in the output pane. You can copy the output, export it as a .csv, or reset everything with Clear All. Works instantly as you type.

What Insert a CSV Column can do:

Insert a CSV Column is a quick way to inject new data into your spreadsheet rows. Maybe you need to add a country, a status, or a fixed flag to every row this tool makes it painless. Set a column name, pick where it goes, and choose what to insert. The output shows up right away. It’s especially useful when prepping CSVs for batch imports or API uploads where a consistent field is required. And because it runs fully in the browser, nothing leaves your device.

Example:

Before:

name,age,city
Alice,30,New York
Bob,25,Los Angeles

After (insert “country” at index 1 with value “USA”):

name,country,age,city
Alice,USA,30,New York
Bob,USA,25,Los Angeles

Common Use Cases:

This tool is perfect when you need to inject a consistent value into your CSVs. Whether it’s tagging records with a region, setting a flag field, or padding legacy exports for compatibility, it gets the job done instantly without needing Excel or scripts.

Useful Tools & Suggestions:

Before inserting, run Count CSV Columns to figure out where your new data should go. And once it’s in place, Rename CSV Columns can help keep everything labeled clearly.

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