Drop a CSV or paste emails. We'll flag role-based addresses, disposable domains, common typos, duplicates, format errors, and free-mail providers — then let you download just the clean rows. Runs in your browser. Format-valid isn't the same as deliverable: catch-all domains accept anything at the server, so confirm those with a real-time verifier before sending.
You'll see a breakdown of clean / flagged / duplicate emails with a download for each bucket.
Tools & Platforms We Work With