🔍
📧
Dedupe Email Lists
Clean up email lists before importing into Mailchimp, SendGrid, or other ESPs.
Ingen inloggning krävs
Output will appear here…Email Lists tips
📧
Most ESPs charge per subscriber and reject duplicates anyway. Dedupe before importing to save credits and prevent errors.
💡
Enable "Ignore case" — Alice@Example.com and alice@example.com are the same address.
🎯
Use "Count occurrences" mode first to see if you have a few duplicates or thousands — gauges the data quality.
Så här fungerar det
1
Ange
Enter your data into the tool above. Everything stays local to your browser.
2
Bearbeta
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Ladda ner
Get your result instantly. Nothing is stored after you leave the page — complete privacy.
Varför använda vårt?
✓Helt gratis — inga dolda kostnader, någonsin
✓Inget konto, e-post eller inloggning krävs
✓Filer lämnar aldrig din enhet
✓Inga filstorleksgränser överhuvudtaget
✓Inga vattenstämplar på någon utdata
Also check out…
🧹✅📊📂
Clean Data Before Analysis
Find duplicate rows in CSV exports or database dum
Identify Repeats in To-Do Lists
Spot duplicate tasks in long to-do lists or projec
Count Word Frequency
Paste a list of words/keywords to see which appear
Find Repeated Commit Messages
Paste a git log to find authors' habitual commit m