Stays local
CSV never leaves your browser. Nothing is uploaded.
No signup. Free. Paste or open a file.
Fix cells in a table, then download in the encoding you need.
CSV never leaves your browser. Nothing is uploaded.
Click a cell and fix it — lighter than wrestling Excel.
Save as UTF-8, UTF-8 BOM, or Shift-JIS for Excel.
Paste text or choose a CSV file.
Press “Show table” and edit cells in place.
Pick an encoding and save. Done.
My CSV is a free browser tool for CSV files that are awkward in Excel. Open a file or paste text, edit cells in a spreadsheet-like view, then download as UTF-8, UTF-8 with BOM, or Shift-JIS. History stays in IndexedDB on your device — your CSV is never uploaded to a server. Useful for cleaning exports, fixing headers, and preparing files for Excel on Windows.