Including: Mailchimp • HubSpot • Salesforce • SendGrid • and more
Pixel Blocking
Block hidden spy pixels that track when and where you open emails.
Link Protection
Strip tracking parameters and anonymize your clicks via our secure proxy.
Real-time Updates
Auto-updated detection engine that identifies new trackers as they appear.
How Gblock Blocks Email Tracking
Install
Add Gblock to Chrome in one click from the Web Store.
Open Gmail
Gblock works automatically in the background, no setup needed.
Stay Protected
See blocked trackers and enjoy private email reading.
Full Protection Against Email Tracking
No other browser extension offers this level of protection.
Spy Pixel Blocking
Invisible 1x1 tracking pixels are detected and blocked before they can report your activity.
Learn more
Spy pixels (also called tracking pixels or web beacons) are tiny invisible images embedded in emails. When you open an email, these pixels load from a remote server, revealing:
- When and how many times you opened the email
- Your IP address and approximate location
- Your device type and email client
Gblock detects and blocks these pixels before they can load, keeping your email activity completely private.
Link Anonymization
Strip tracking parameters and route clicks through our secure proxy to hide your IP address.
Learn more
Email links often contain tracking parameters (like UTM codes) and redirect through tracking servers. When you click, marketers can see:
- Which links you clicked and when
- Your IP address and location
- Your browsing behavior after clicking
Gblock strips tracking parameters and routes your clicks through our privacy-safe proxy, so trackers only see our server - not you.
Auto-Updated Rules
Our detection engine updates automatically, adding new trackers daily.
Learn more
Email tracking evolves constantly. New tracking services appear regularly, and existing ones change their methods to evade detection.
Gblock's detection rules update automatically in the background - no manual updates needed. We currently block over 15668 known trackers and add more every day.
Real-time Detection
Unlike static filter lists, Gblock detects new trackers dynamically as they appear.
Learn more
Most privacy tools rely on static blocklists that only catch known trackers. Gblock goes further with intelligent real-time detection:
- Analyzes email content as you view it
- Identifies tracking patterns even from unknown sources
- Blocks suspicious pixels before they can report back
This means you're protected even from brand-new trackers that haven't been added to any blocklist yet.
See Tracker Detection in Action
Trusted by Privacy-Conscious Users
"A different extension I used to block pixel code in the past (PixelBlock) no longer works after the Chrome manifest V3 update, but Gblock does and it's even better! I went over all of the code that goes into this extension, it fully checks out! Great developer, great extension, highly recommend!"
Chanan Bos
"I love this extension, it generated great transparency into email tracking and anonymization. I had a small issue and customer support was super fast and effective. It's a great value for money!"
Rotem Yossef
Who Uses Gblock?
Privacy Advocates
Individuals who value their inbox privacy and want control over who tracks their email activity.
Business Users
Professionals who need to protect business communications from marketing trackers and competitors.
Security Experts
Tech-savvy users who demand full control over their digital footprint and study tracking techniques.