Email Verifier by Qualisend

Verify any email address where you find it — real mailbox checks, catch-all honesty, and a 0–100 score from Qualisend.

Check whether an email address can actually receive mail, without leaving the page you are on. • Type or right-click any address for a verdict, a 0–100 score and a did-you-mean suggestion when it looks like a typo. • Click "Scan this page" to collect the addresses on a page you choose, pick the ones you want, and verify them together. Google Sheets works too. • Export results as CSV, or copy just the deliverable addresses. The extension extracts email addresses from pages you explicitly scan and sends them to app.qualisend.com to verify them against your own Qualisend account. Nothing is collected in the background and nothing is sent until you click. Each verification spends one credit from your workspace, exactly like the dashboard. A free Qualisend account includes 100 credits.