CSV Viewer/Editor
Open a comma-separated CSV file, edit cells and headers, add or remove rows, and download the updated data with this online CSV editor.
CSV Viewer & Editor
Upload, view, and edit CSV files directly in your browser
Upload a CSV file to begin
Open and inspect the CSV
Select Upload CSV and choose a comma-separated file. Review the headers and the first few rows before editing. If columns are shifted, check the delimiter, quotation marks, and embedded line breaks in the source file.
Make a small change
Edit a cell or header using the page controls. Add or remove rows only after confirming which record you are changing. Download the edited CSV under a new name so the original stays available for comparison.
Test a representative row
For a contacts file, check a row containing a comma inside an address and another containing an empty field. Open the downloaded file in the application where you will use it and confirm that both rows still occupy the expected columns.
Know what CSV preserves
CSV stores text values in rows and columns. It does not preserve workbook formulas, cell formatting, multiple sheets, or a spreadsheet’s visual layout. Review dates, leading zeros, and long identifiers after opening the file elsewhere, since an application may interpret those values automatically.