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Dedupe Email Lists
Clean up email lists before importing into Mailchimp, SendGrid, or other ESPs.
Sin necesidad de registro
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.
Cómo funciona
1
Introducir
Enter your data into the tool above. Everything stays local to your browser.
2
Procesar
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Descargar
Get your result instantly. Nothing is stored after you leave the page — complete privacy.
¿Por qué usar el nuestro?
✓Completamente gratis — sin costes ocultos, nunca
✓Sin cuenta, correo ni registro requerido
✓Los archivos nunca salen de tu dispositivo
✓Sin límite de tamaño de archivo en absoluto
✓Sin marcas de agua en ningún resultado
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