Lead List Cleaner
Remove invalid, duplicate, and role-based emails from any CSV — free
Upload a CSV lead list and get it cleaned of invalid formats, disposable domains, duplicates, and role-based addresses (info@, support@) in one click.
Get your result in under 10 seconds.
No account required
Example output
How It Works
Paste Input
Copy and paste your data into the input field
Get Result
Instant results in under 10 seconds
Share
Copy result or share a direct link
The Problem
Bad emails tank deliverability and domain reputation
Manually checking thousands of leads before a campaign is impractical
What It Does
Syntax Validation
Flags malformed email addresses that will hard-bounce before you send.
Disposable Domain Filter
Removes addresses from 4,000+ known disposable email providers.
Duplicate Removal
Deduplicates by exact email and by domain+name pattern.
Role-Based Filter
Flags and optionally removes admin@, info@, noreply@, and 30+ other role prefixes.
Share your result
Every result gets a unique shareable link. Show your colleagues.
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Browse all products →Frequently Asked Questions
Is my data stored?
No — files are processed in-browser and never uploaded to any server.
What is the row limit?
Free tier handles up to 5,000 rows. Larger files will be supported in a Pro version.