CSV Viewer & Editor
Open, view and edit CSV files online in a table: sort, filter, edit cells, add or delete rows and columns, and save as CSV, Excel or JSON. Your work stays on this device whenever possible.
How to use CSV Viewer & Editor
- Open a CSV or TSV file, paste CSV text, or start a blank table.
- The delimiter is detected automatically; change it if the columns look wrong.
- Click any cell to edit it, click ⇅ to sort by a column, type in "Filter rows" to find rows, and use + Row, + Column, × and Undo.
- Save as CSV (commas, semicolons or tabs), Excel (.xlsx) or JSON.
Worked example
An online store exports orders.csv with semicolons. It opens with the delimiter detected, the columns are sorted by Total (numbers sort as numbers, not text), two refunded rows are deleted, and the file is saved again with commas for the accounting app.
When to use this tool
- Quick fixes to exports from shops, CRMs and email tools without opening Excel.
- Viewing CSV files on computers that have no spreadsheet app.
Important limitations
Shows 100 rows per page; files of several hundred MB may be slow, because the whole file is held in the browser's memory.
Frequently asked questions
How do I open a CSV file without Excel?
Open it here: the file is shown as a table in your browser, with no Excel, Google account or install needed.
Will Excel mess up my data?
This editor keeps every value exactly as text, so leading zeros (007), long ID numbers and dates are not changed. In the Excel export, plain numbers become numbers, but values with leading zeros stay text.
Which delimiters are supported?
Commas, semicolons, tabs and pipes, detected automatically. Quoted fields with commas, quotes and line breaks inside them are handled as the CSV standard (RFC 4180) describes.
Why does the saved file show accents correctly in Excel?
The CSV is saved as UTF-8 with a byte-order mark, which tells Excel to read it as UTF-8.
Is my file uploaded?
No. It is opened and edited in your browser, and saving creates the file on your device.