Cost / License
- Free
- Open Source (Apache-2.0)
Platforms
- Mac
- Windows
- Linux
- Self-Hosted
- Google Chrome
- Firefox




Gblock is described as 'Browser extension that protects your privacy in Gmail by blocking email senders from tracking you' and is an app in the security & privacy category. There are five alternatives to Gblock for a variety of platforms, including Mac, Windows, Linux, Google Chrome and Apple Mail apps. The best Gblock alternative is Trocker, which is both free and Open Source. Other great apps like Gblock are MailTrackerBlocker, Email Privacy Protector, Ugly Email and PixelBlock.




MailTrackerBlocker is a plugin for the default Mail app built-in to macOS. When you view your email a 🛑 # button will appear to indicate the number of services blocked. Tap on the button to show which services have been blocked.


Anytime you open your emails, people could be tracking when you do it, and which links you click on. Protect your email privacy.

The #1 most downloaded Gmail extension for blocking read receipts and other email tracking pixels.The #1 most downloaded Gmail extension for blocking read receipts
PixelBlock is a Gmail extension that blocks people from tracking when you open their emails.
