Features
My CSV is a free browser tool for editing awkward CSV files as a table. No signup—and your CSV never leaves the device.
Free, no signup
Open the browser and start editing. No accounts.
Stays local
Paste, open a file, edit, and download entirely in the browser. Nothing is uploaded.
Edit in a grid
Toggle a header row, edit cells, add rows/columns—lighter than opening Excel.
Encodings
Download as UTF-8, UTF-8 with BOM, or Shift-JIS for Excel-friendly files.
On-device history
History stays in IndexedDB on your device only.