CSV Table Editor Online - Edit and Download CSV Locally
Open or create a CSV table, edit cells in a spreadsheet-style grid, add rows or columns and download the result.
About this tool
The local editor starts with a blank grid or parses a selected CSV. Cell values are serialized with standard quote escaping into a new CSV download.
How to use
- Enter the requested details or choose the supported files.
- Run the tool with the intended options.
- Review the preview or downloaded result before use.
Features
- Optional CSV import.
- Editable cells with add-row and add-column controls.
- Escaped CSV download.
Common use cases
- Correct a small CSV file.
- Create a simple table from scratch.
- Clean values before importing them elsewhere.
Common issues and tips
- The editor does not provide formulas, sorting or bulk spreadsheet features.
- Very large files are not ideal because the interface displays at most 500 rows.
Privacy
All content and files are processed locally in your browser and are not uploaded to Tools12345.
Frequently asked questions
Can I start without a file?
Yes.
Are commas and quotes escaped?
Yes.
Does it save XLSX?
No, output is CSV.