CSV Editor
Edit CSV files online with cell editing, add/remove rows and columns, and download your changes.
Drop your file here or click to upload
Accepts CSV, TSV, TXT. Maximum input: 100MB. Performance varies by device and tool.
How to Use CSV Editor
- Upload your CSV file
- Click any cell to edit its content
- Use find and replace for bulk text updates
- Use the toolbar to add or remove rows and columns
- Download your edited CSV when done
Features
- Edit cells inline
- Bulk find and replace
- Add/remove rows
- Add/remove columns
- Rename headers
- Undo/redo support
- Download edited CSV
Use Cases
- Fix data errors in CSV files
- Add or remove data entries
- Restructure CSV columns
- Prepare data for import
Frequently Asked Questions
Is the CSV editor free?
Yes, the CSV Editor is completely free with no limits and no signup — just open a file and start editing.
Can I undo my changes?
Yes. Use the undo/redo buttons or Ctrl+Z / Cmd+Z to step back through your edits.
Can I find and replace text across the file?
Yes. Use the built-in find and replace to update text across all columns or a single column at once, with an optional match-case setting.
Will my original file be modified?
No. Your original file is never changed — you download a new CSV with your edits.
Is my data private?
Yes. Editing happens entirely in your browser, so your data is never uploaded to a server.