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CSV Spreadsheet Editor

Edit CSV quickly with a simple grid UI. Copy the output or download as a .csv file.

CSV input

This is a lightweight CSV-based spreadsheet. For complex Excel features, use a dedicated spreadsheet app.

CSV output

How to use this tool

  1. Paste CSV and load into the table.
  2. Edit any cell directly.
  3. Copy or download the updated CSV.

How to Use

Load CSV into the table, edit values, then copy/download the output CSV.

How It Works

CSV text is parsed into a 2D array in your browser. Edits update the array and are re-serialized to CSV on demand.

Key Features

  • CSV input/output
  • Editable grid
  • Download .csv

Secure & Private

No uploads. CSV parsing and editing are local.

Frequently Asked Questions

Does this support Excel .xlsx files?
No. This tool is CSV-based for speed and simplicity.
Can I add rows and columns?
Yes — use the buttons to add rows or columns.

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Privacy Notice

All processing happens inside your browser. No files or data are uploaded to our servers, ensuring your privacy is strongly protected.