Chrome extension
Verify emails without leaving the page.
Type an address, right-click one, or scan the whole page — Google Sheets included. Each address gets a verdict and a 0–100 score.
- Real mailbox checks
- Works in Google Sheets
- Nothing sent until you click
- 100 free credits
99 creditsSign outPaste a whole column to check them all at once.
Three ways to check.
Same verdicts and scores as the dashboard.
Type or paste
Get a verdict, a 0–100 score and the reason, plus a did-you-mean for likely typos. Paste a whole column to load it as a list.
Right-click an address
Select an address on a page and choose “Verify with Qualisend”. The toolbar icon shows a badge; open the popup and the check runs.
Scan this page
Collects the addresses on the page you're on, and you pick which to verify. On Google Sheets it reads every row of the open sheet, not just those on screen.
One address or a whole list.
What happens depends on how many you found.
- Up to 200
Pick and verify
Tick the ones you want. Up to 50 verify right in the popup, with results beside each address; more run as one background job.
- Up to 1,000
One background job
“Verify all” runs them as a single job. Close the popup if you like and follow the job in your dashboard.
- More than 1,000
Export and upload
Download the addresses as a CSV and upload it in the dashboard, which takes up to a million rows.
- Download the list as a CSV, or copy just the deliverable addresses.
- Anything over 50 addresses shows the cost and the balance it leaves, and waits for you to confirm.
94 creditsSign outRead 5 addresses from this sheet.
- ana@acme.comDeliverable94
- mia@globex.comUndeliverable3
- sam@initech.ioDeliverable92
- lee@umbrella.coRisky44
- k.novak@acme.comDeliverable91
Nothing happens until you click.
The extension sends only the addresses you choose to verify.
No background collection
Nothing is collected and nothing leaves your browser until you check an address or scan a page. A one-time consent screen says so before you start.
One tab, when you ask
No content scripts and no standing access to any site. It reads only the tab you open it on.
Sign in, no API key
Sign in with your Qualisend account. Access is limited to the workspace you approve, and you can revoke it under Settings → Connected apps.
Same credits, same dashboard
One credit per verification, exactly like the dashboard. Every run shows up there, with “Extension” as its source.
What the extension reads, sends and stores is set out in our Privacy Policy.
Chrome extension FAQ
Add it to Chrome.
Free to install. Sign in with your Qualisend account, or create one with 100 free credits.