Free Online CSV Editor & Spreadsheet

Open CSV or Excel files, edit cells, sort and export — all locally in your browser.

What you can do

• Edit CSV and XLSX in a grid
• Add and remove rows and columns
• Export to CSV
• No upload, no sign-up

Private by design

GenZ Editor runs entirely in your browser. Your files are processed on your own device and are never uploaded unless you choose to create a share link. No account, no watermark, no limits.

Frequently asked questions

Can I open Excel files?

Yes, XLSX files open in the grid editor.

Is my data private?

Yes, it stays in your browser.

Is it free?

Yes.