Insert CSV Columns
Insert a new column at any position in CSV; {row} inserts the row number.
FreeNo uploadNo sign-up
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How to use the Insert CSV Columns
- Type or paste your input into the Input box, or upload a text file.
- Adjust the options under the tool. The result updates as you type.
- Copy the output or download it as a file.
Private by design
The Insert CSV Columns runs entirely in your web browser. Nothing you enter or open here is uploaded to a server, so it is safe to use with private data and works even when your connection drops after the page has loaded.
Frequently asked questions
Is the Insert CSV Columns free?
Yes. The Insert CSV Columns on Codegres.org is completely free, with no sign-up, no limits and no watermark.
Is my CSV uploaded anywhere?
No. The Insert CSV Columns runs entirely in your browser using JavaScript, so your CSV never leaves your device and is not stored or seen by anyone.
Does the Insert CSV Columns work on my phone?
Yes. It works in any modern browser on Android, iPhone, Windows, Mac and Linux, with nothing to install.