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Dedupe Email Lists
Clean up email lists before importing into Mailchimp, SendGrid, or other ESPs.
Aucune connexion requise
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.
Comment ça marche
1
Saisir
Enter your data into the tool above. Everything stays local to your browser.
2
Traiter
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Télécharger
Get your result instantly. Nothing is stored after you leave the page — complete privacy.
Pourquoi utiliser le nôtre ?
✓Entièrement gratuit — sans coûts cachés, jamais
✓Aucun compte, e-mail ou connexion requis
✓Les fichiers ne quittent jamais votre appareil
✓Aucune limite de taille de fichier
✓Aucun filigrane sur aucun résultat
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