CSV Viewer and Editor
Open a CSV file, edit it like a spreadsheet, and export the result.
About the CSV Viewer and Editor
This tool opens a CSV file directly in your browser and shows it as a regular table, so you can read it without opening a spreadsheet program. Every cell and column header is editable, so small fixes like a typo, a wrong date, or a missing value can be corrected in place before exporting the file again.
Beyond viewing, it works like a lightweight spreadsheet editor: sort any column by clicking its header, search across the whole table to find a row, add or delete rows and columns as your data changes, and undo or redo any of these edits if you make a mistake. When you're done, download the result as a clean, properly formatted CSV file.
Is my data uploaded anywhere?
No. Parsing, editing and exporting all happen locally in your browser — the file you open is never sent to a server, which makes this a safe way to view or clean up spreadsheets that contain personal or sensitive data.
What counts as valid CSV?
Comma-separated rows, with optional double quotes around any value that itself contains a comma, a quote, or a line break. The editor also tolerates rows of uneven length by padding the shorter ones, so messy exports from other tools should still open correctly.