Free CSV Tool
Remove fake, invalid, and junk email addresses from a CSV. Upload your list, pick the rules you want, and download the cleaned file.
One CSV file. All columns are kept in the cleaned file.
Drop your CSV file here
or click to browse
The recommended rules are already on — most people can skip straight to the button at the bottom.
These catch more junk but can also remove real people. Turn them on only if you want an aggressive clean.
Leave these blank to skip them.
Separate with commas. Blocking example.com also removes mail.example.com addresses.
Separate with commas. Any email containing one of these words is removed (not case-sensitive).
A limit of 4 keeps example2010@gmail.com (4 digits) but removes example201054@gmail.com (6 digits).
A minimum of 3 keeps anna@gmail.com but removes jo@gmail.com (2 characters).
Your files never leave your device — everything runs in your browser.