Get the Chrome extension.

The extension adds tracking to Gmail — it injects an invisible pixel when you hit Send and shows read receipts right in your inbox.

Download the extension

Coming to the Chrome Web Store soon — for now it installs in 30 seconds with the steps below.

Install in 5 steps

1
Download & unzip
Click the download button above, then double-click the .zip to unzip it. You'll get a folder called “mailviewed-extension”.
2
Open Chrome extensions
In Chrome, go to chrome://extensions (paste it in the address bar and press Enter).
3
Turn on Developer mode
Flip the “Developer mode” switch in the top-right corner.
4
Load it
Click “Load unpacked” and select the unzipped “mailviewed-extension” folder. Mail Viewed appears in your toolbar.
5
Sign in & send
Pin the extension, then open Gmail and compose — you'll see the “Tracking on” pill. Hit Send and watch opens land on your dashboard.

Note: because the extension isn't on the Chrome Web Store yet, Chrome installs it in “developer” mode — that's normal and safe. Once it's published, you'll be able to add it with one click and updates will be automatic.