A free email list cleaner that removes invalid, duplicate and throwaway addresses, fixes typos, and keeps your columns.
5.0(1 rating)Drop your list as a CSV, or paste it. Remove invalid, duplicate and throwaway addresses, fix typos, and download the clean list with your columns kept.
Your list
Everything runs in your browser: nothing is uploaded, and no email is sent. A free check can't ask a mail server whether a mailbox exists; paid verifiers do that.
This free email list cleaner removes the addresses that hurt your sending: invalid ones, duplicates, throwaways and typos.
Drop a CSV and download the clean list, with your columns kept and typos fixed if you want.
What is an email list cleaner?
An email list cleaner takes your list, finds the addresses that would bounce or never read your email, and gives you back a list without them.
Why clean an email list
Yahoo tells senders to remove invalid recipients from their list promptly, and to watch hard and soft bounces. Gmail and Yahoo both hold senders to a spam rate under 0.3%.
Addresses that bounce, and people who never open, pull down how inboxes treat the rest of your email. Yahoo also suggests double opt-in, so fake addresses never get on your list.
What to remove
| Kind | Why |
|---|---|
| Invalid | The domain doesn't exist or takes no email, so it bounces |
| Duplicates | The same person gets your email twice |
| Throwaways | Signed up to get something once, and gone after |
| Typos | gmial.com bounces; fix it to gmail.com instead |
| Role addresses | Reach whoever holds the job this week |
Role addresses are risky, not invalid: keep them when they asked for your email.
Final thoughts on cleaning an email list
Clean before you move to a new email platform, since many bill by list size, and before a big send.
See what a smaller list saves with the email marketing cost calculator.
Ready to send to a clean list?
Email platforms that set up SPF, DKIM and DMARC with you
For developers: send from your own app
Email List Cleaner FAQs
Questions about cleaning an email list? Here's what to know.
An email list cleaner removes invalid, duplicate, throwaway and mistyped addresses from a list and gives you the clean list back.
Before you move to a new email platform, and before a big send.
On platforms that bill by list size, yes: fewer contacts can move you down a tier.
The email marketing cost calculator shows the difference.
Not always.
Keep role addresses that asked for your email, and watch how they engage.
Yes, turn on "Fix typos in the download", and an address like jane@gmial.com comes back as jane@gmail.com.
Yes, the email list cleaner is free, with no sign-up.
Your list is read in your browser and never uploaded.
Navid Moazzez
AI business strategist & AI OS builder
Navid Moazzez helps creators and founders master AI and build their own AI Operating System (AI OS) to automate their business and life.
Navid.me is reader-supported. When you buy through links on this site, I may earn an affiliate commission. Learn more.
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