MailViewed
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The email tracker 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

Latest version: v0.7.10 · Coming to the Chrome Web Store soon — for now it installs in 30 seconds with the steps below.

Install in 5 steps
  1. 1
    Download & unzip

    Click the download button above, then double-click the .zip to unzip it. You'll get a folder called “mailviewed-extension-v0.7.10”.

  2. 2
    Open Chrome extensions

    In Chrome, go to chrome://extensions (paste it in the address bar and press Enter).

  3. 3
    Turn on Developer mode

    Flip the “Developer mode” switch in the top-right corner.

  4. 4
    Load it

    Click “Load unpacked” and select the unzipped MailViewed folder. MailViewed appears in your toolbar.

  5. 5
    Sign in to activate

    Open mailviewed.com and sign in with Google — this securely links the extension to your account. Then compose in Gmail: 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.