CommaLint

Private CSV audit & cleanup

CSV cleaner that keeps your file on this device

Exported spreadsheets often arrive with trailing spaces, empty rows, and leftover blank columns. CommaLint is a CSV cleanup tool that audits first, then lets you preview a small set of safe fixes before you download.

Why CSV files get messy

CRM exports, ecommerce downloads, and spreadsheet “Save As CSV” workflows often leave structural clutter. That clutter slows imports and makes reviews harder—even when the business data itself is mostly fine.

  • Leading or trailing spaces on names, codes, or emails
  • Completely empty rows left behind by filters or copy/paste
  • Unused blank columns from templates
  • Exact duplicate rows from merged exports

What this CSV cleaner does

CommaLint cleans only what you opt into. After a full audit, you can preview:

  • Trim edge whitespace
  • Remove blank rows
  • Remove exact duplicate rows (off by default)
  • Drop blank columns (off by default)

It does not silently rewrite dates, numbers, booleans, case, or email values. Those issues are reported so you can decide what matters.

Cleanup without uploading

Your CSV stays in the browser. There is no CommaLint account and no cloud storage of spreadsheet contents. A one-time $12 license unlocks cleaned CSV and HTML audit report downloads after you preview.