Demo 03 · CSV cleaner
Messy spreadsheet in. Clean one out.
Drop in a CSV and watch names, phone numbers, emails, dates and duplicates get fixed, with every change shown. The work happens in your browser tab. Your file is never uploaded.
Add a file
Check the columns and options
I guessed each column’s type from its header and values. Change any that are wrong.
| Column | Type | First values | After cleaning |
|---|
Review the changes
Your original file is never changed.
How it works in real life
Rules, not guesswork
Every fix is a plain rule you can see: trim, case, format, match. Nothing is changed that isn’t shown in the preview first.
Anything doubtful is flagged
Bad emails, short phone numbers, impossible dates and unclear amounts are marked for a human instead of silently “fixed”.
Runs on a schedule, too
The same rules can run automatically on a file that lands in a folder or an inbox every week, and write the clean version somewhere useful.
Tuned to your data
For a real job I tune the rules to your columns, your quirks and your downstream system (CRM, accounting, mailing tool).
Four-digit zip codes get their leading zero back, because spreadsheets strip it. Two-digit years are read as 19xx or 20xx and flagged.
Want this for your business?
Tell me the job. I’ll build a working prototype before you pay anything.