Clean your email list without uploading it to anyone.
Paste or drop your list. MailScrub strips duplicates, syntax errors, disposable addresses, role accounts and fixes common typos — all locally, on your machine. Nothing is ever sent to a server.
- Your data never leaves this page. Unplug your internet and it still works.
- No signup, no account, no cookies. Open, clean, download, done.
- Stop paying your email platform for dead contacts and burning sender reputation on bounces.
Scrub a list now
The free plan exports cleaned lists up to 100 emails. Unlock unlimited exports forever for a one-time €19 — no subscription, no account.
Unlock unlimited — €19 one-timeWhy not just use ZeroBounce or NeverBounce?
Honest answer: they do one thing MailScrub deliberately doesn't — SMTP mailbox pinging. Everything else, you're paying per-email and uploading your subscriber data to get. Most teams run MailScrub first, then verify only the survivors.
| MailScrub | ZeroBounce / NeverBounce | Your ESP's built-in hygiene | |
|---|---|---|---|
| Your list stays on your device | ✓ Never uploaded — works offline | ✗ Uploaded to their servers | ✗ Lives on their servers |
| Pricing model | €19 once, unlimited, forever | Credit packs — you pay per email, per clean | "Free", but you pay monthly per contact stored |
| Clean the same list again next month | ✓ €0 | ✗ Buy credits again | Passive at best |
| Account / signup required | None | Account + billing details | You're already locked in |
| GDPR data-processing agreement needed | No — no processor exists | Yes — they process personal data | Yes |
| Duplicates & Gmail alias merging | ✓ | Partial | Duplicates only |
| Typo repair (gamil → gmail) | ✓ Auto-fixed, kept in list | Flagged, rarely fixed | ✗ |
| Disposable & role account removal | ✓ | ✓ | Varies |
| Gibberish / bot-signup detection | ✓ | ✓ | ✗ |
| SMTP mailbox verification | — by design: it can't be done privately | ✓ Their real value-add | ✗ (bounces teach it, painfully) |
| Time to first result | Seconds, this page, right now | Signup → upload → queue → wait | N/A |
THE SMART WORKFLOW: MAILSCRUB FIRST (FREE/€19, PRIVATE) → SEND ONLY THE SURVIVORS FOR PAID SMTP VERIFICATION → YOU BUY 30–60% FEWER CREDITS AND NEVER UPLOAD THE JUNK.
Pricing that respects you
Free
- Full analysis of any size list
- All checks: duplicates, syntax, disposables, roles, typos, aliases, gibberish
- Export cleaned lists up to 100 emails
- Unlimited export
Lifetime
- Everything in Free
- Unlimited list size, unlimited exports
- All future rule updates included
- One code, works on any of your machines
- 14-day no-questions refund
Questions people actually ask
Is my list really not uploaded anywhere?
Correct. All processing happens in JavaScript in your browser tab. You can disconnect from the internet after the page loads and everything still works. There is no server, no database and no analytics on your data — there's nowhere for it to go.
How is this different from ZeroBounce or NeverBounce?
Those services do SMTP-level verification (pinging mail servers), which requires uploading your list and paying per contact. MailScrub does everything that can be done without touching a mail server: duplicates, syntax, disposable domains, role accounts and typo repair. For most lists that's 60–90% of the junk, at zero privacy cost. Many users run MailScrub first, then send the much smaller remainder for paid verification.
Why should I clean my list at all?
Email platforms charge by contact count, so dead rows are a recurring fee. Worse, bounces and spam-trap hits damage your sender reputation, which lowers inbox placement for your entire list. Hygiene is the cheapest deliverability upgrade there is.
What happens after I pay?
You receive an unlock code by email within a minute. Paste it into the tool once and unlimited exports are enabled — this browser remembers the unlock. Keep the email — the same code works on any computer, forever.
GDPR?
Since your data never leaves your device, using MailScrub involves no data processor, no transfer and no DPA. It is the most GDPR-conservative way to clean a list, by construction.