Does Search affect the export?

No. Search filters the preview only; the export always contains every cleaned row.

Do hidden columns get exported?

No. Hidden columns are removed from CSV and SQL output alike.

How large a file can it handle?

Up to 100MB opens; guest row limit is 500 and signed-in is 50,000.

Cleaning toggles are reversible: turn them off and the original rows return, since the source is untouched.

Client-side CSV tool for the browser

This is a CSV workspace that lives in your browser: preview the rows, hide or rename columns, trim and de-duplicate, then export. There is no backend table and no upload, so it is safe for internal data.

The preview renders quickly even for large files, and exports always contain the full cleaned dataset plus the columns you left visible.

Markdown / CSV Output

Drop a file to clean and export it

Processing stays in this browser. Guests can process up to 500 rows per file.

How to use this tool

1Drop a CSV file.
2Use Search to find rows, or Columns to hide what you do not need.
3Turn on the cleaning options that fit your data.
4Download the cleaned CSV.

Frequently asked questions

Does Search affect the export?: No. Search filters the preview only; the export always contains every cleaned row.
Do hidden columns get exported?: No. Hidden columns are removed from CSV and SQL output alike.
How large a file can it handle?: Up to 100MB opens; guest row limit is 500 and signed-in is 50,000.
Can I undo changes?: Cleaning toggles are reversible: turn them off and the original rows return, since the source is untouched.

Private by design

This tool runs entirely in your browser. Files, tables, and results are never uploaded to a server — you can even disconnect your network and keep working. See the Privacy Policy.