CSV Cleaner
Tidy up exported lists of customers, leads or students before importing them elsewhere.
Runs in your browser. Nothing is uploaded Free, no sign-up Works on mobile
Choose a CSV or Excel file to clean
or drag and drop here
How to use CSV Cleaner
- Open the CSV or Excel file.
- Pick the clean-up options.
- Check the preview and download the clean CSV.
Frequently asked questions
Can I remove duplicates by email or phone only?
Yes. Choose “Same <column>” under Remove duplicates to keep the first row for each value.
What does “Format Indian mobile numbers” do?
It converts 10-digit mobile numbers and 91-prefixed numbers to the format +91 9876543210.
Are my files uploaded?
No. Files are read and processed by your browser on your own device, so there is no upload wait and no size limit set by a server.
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