Free · runs in your browser
Bulk Email Validator
Syntax and risk flags on CSV lists before you send.
How it works
Validate many email addresses at once
Paste a list or upload a .txt / .csv → click Check list → see valid vs invalid formats before you import. Nothing is uploaded for checking — download CSV or email yourself a summary when you’re done.
Results appear here after you click Check list.
Related list quality tools
Same category — clean, validate, and screen lists before outreach.
- Email List CleanerPaste or upload a list — remove invalids, dupes, and disposables.
- Disposable Email DetectorFlag temp and throwaway domains in a lead list.
- Role-Based Email FilterStrip info@ / sales@ / support@ before cold outreach.
- Duplicate Email RemoverDedupe multi-source CSVs instantly.
- Catch-All Domain Risk ScreenerFlag domains likely to pass SMTP checks falsely.
Harvest cleaner lists with MailShrine?
Run AI Email Lead Generator, then clean exports here before you load a sequencer.