CSV Editor
Free online CSV file editor. Import, edit, and export tabular data without installation. 100% private — processing happens in your browser.
Drag and drop CSV file or click to select
Supported formats: CSV, TSV (up to 10MB)
100% private — processing happens locally in your browser
- Drag a CSV file to the page or click to select a file from your computer. The delimiter is detected automatically.
- Click on a cell to edit it. Use Enter to move to the next row, Tab to move to the next column.
- Use '+' buttons to add new rows at the bottom of the table or new columns on the right side.
- Hover over a row to see the delete button. Click X in a column header to delete it.
- Click 'Export CSV' to download the modified file or 'Copy to clipboard' to copy the data.
Privacy: Your data never leaves the browser. All processing happens locally.
Is my data safe?
Yes! All operations are performed locally in your browser. No data is sent to any server — you have full control over your files.
What CSV delimiters are supported?
We support comma, semicolon, tab, and pipe. The delimiter is detected automatically when loading the file, but you can also change it manually.
Can I edit large files?
Yes, the tool handles files with tens of thousands of rows. For very large files, performance depends on your browser.
Is the tool free?
Yes, the CSV editor is completely free and doesn't require registration or login.
Can I undo changes?
Yes! Use Ctrl+Z (or Cmd+Z on Mac) to undo the last change, and Ctrl+Shift+Z to redo. Change history is kept during the session.