Edit your CSV and download the result
Edit cells, headers, rows, and columns in one table. Codes like 00123, text dates, and long numbers keep their values. Sort, filter, and search to check your CSV. Download the finished file in UTF-8, free and without an account.
- No file size cap
- Codes and dates stay as text
- Sort, filter, and search data
- Edit, add, and duplicate rows and columns
- Free, with no account or file upload to a server
sales_export.csv
3 columns · 3 rows
Open your CSV to edit
Choose a .csv file from your device or drag it into the editor. File contents are parsed, edited, and exported locally in your browser.
Unlimited file size. This tool sets no file size cap. Processing runs in your browser and depends on your device’s available memory.
Prepare your CSV for the next import
Fix the cell you need
Click a cell in the table and enter a new value. Headers and data are arranged in columns, so you can edit an export or just review it.
Change the table structure
Rename headers and add rows and columns. Use the context menu to insert them before or after the selected item, duplicate them, or delete them.
Sort, filter, and search
Find the values you need, filter rows by column content, and sort columns before making edits or reviewing the file.
Work with the file on your device
CSV contents are processed in your browser from opening to download. You can edit a customer list or internal report without sending the file to a server.
Keep codes and dates intact
The code 00123 stays as the text 00123, the date 2026-10-19 is not converted to a number, and long IDs are not rounded. You see and edit the text in each cell.
Download standard CSV
Download the result as a separate UTF-8 CSV file for your next import. Commas, quotes, and line breaks within cells are escaped on export.
From an export to a ready-to-use CSV
Edit a CRM report, product catalog, or order list right in your browser. Open the table, change values and structure, then download the CSV for your next step.
Open your file, make the changes you need, review the rows, and download the finished CSV. No software installation or account required.
Prepare data for import
Match headers to the target system's field names, correct values, and remove unneeded records.
Preserve leading zeros
Product code 00123 stays as the text 00123. The editor does not convert text dates into other values or evaluate cell contents as formulas.
Open a large CSV in full
The editor sets no file size cap. Virtual scrolling displays the rows by rendering the visible part of the table.
Download a separate result file
The editor reads the source file into a table in your browser. You make changes in that table; the finished CSV downloads as a separate file for spreadsheets, databases, Python, or R.
How to edit a CSV and download the result
- 1
Open your CSV file
Choose a .csv file or drag it into the editor on this page. Headers and rows open as a table.
- 2
Make edits in the table
Click a cell or header to change its text. A row or column's context menu lets you insert, duplicate, or delete it.
- 3
Review with sorting and filtering
Use search, sorting, and filters to verify the rows you changed and catch empty cells, duplicates, or formatting issues.
- 4
Download the finished CSV
Export the edited table as UTF-8 CSV. Use the file in a report, your next import, or an analysis tool.
Common CSV Editing Use Cases
Fix a CRM export
Update record values, correct column names, and remove unneeded rows before handing over the file.
Prepare a product catalog
Correct names and prices, and add the fields you need. Product codes with leading zeros stay as text while you edit.
Check data before analysis
Review headers and rows, make edits, and download CSV for charting or processing in Python and R.
CSV Editor FAQ
How do I edit a CSV file online?
Open your CSV in the editor on this page. Click a cell or header and change its text. Row and column menus let you insert, duplicate, and delete items. When you finish, download the result as a separate CSV file.
Is this CSV editor free?
Yes. Open, view, edit, and download CSV files for free, with no account or software installation.
Are my CSV files uploaded to a server?
File contents are not sent to a server for processing. Opening, editing, viewing, and exporting CSV happen locally in your browser.
Can I use this as a CSV viewer online?
Yes. Open a file to check its headers, rows, and values. You do not need to change the data or create an account to view it.
Can I add or delete rows and columns?
Yes. Add rows and columns and rename headers. Use the context menu to insert an item before or after the selection, duplicate it, or delete it.
Does the editor support large CSV files?
Yes. The editor sets no CSV file size cap. It opens the table in your browser and uses virtual scrolling to display rows.
How are values preserved when exporting CSV?
Cell values export as text in UTF-8 CSV: the code 00123 keeps its leading zeros, and text dates and long numbers are not converted. A field containing a comma, such as Moscow, Russia, is enclosed in quotes; quotes within the field are escaped. This is standard CSV for your next import.
What should I do after editing my CSV?
Download the finished CSV to import into your chosen system. To keep working, open it in CSV to Chart, reduce its size with CSV Compressor, or convert it to Parquet.
Turn your finished CSV into clear charts
After editing, continue visual analysis with Kanaries tools. Download Graphic Walker to work on your computer or use PyGWalker for Python notebooks.