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Dedupe Email Lists
Clean up email lists before importing into Mailchimp, SendGrid, or other ESPs.
Prihlásenie nie je potrebné
Output will appear here…Email Lists tips
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Most ESPs charge per subscriber and reject duplicates anyway. Dedupe before importing to save credits and prevent errors.
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Enable "Ignore case" — Alice@Example.com and alice@example.com are the same address.
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Use "Count occurrences" mode first to see if you have a few duplicates or thousands — gauges the data quality.
Ako to funguje
1
Zadajte
Enter your data into the tool above. Everything stays local to your browser.
2
Spracujte
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Stiahnite
Get your result instantly. Nothing is stored after you leave the page — complete privacy.
Prečo použiť náš?
✓Úplne zadarmo — nikdy žiadne skryté náklady
✓Nie je potrebný účet, e-mail ani prihlásenie
✓Súbory nikdy neopustia vaše zariadenie
✓Žiadne obmedzenia veľkosti súborov vôbec
✓Žiadne vodoznaky na žiadnom výstupe
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