Gblock
Block email tracking in Gmail for ultimate privacy protection
What is Gblock? Complete Overview
Gblock is a powerful Gmail extension designed to protect your email privacy by blocking spy pixels and tracking links. It ensures that senders cannot track when you open emails, your location, or device information. The tool is perfect for individuals and professionals who value privacy, offering automated tracker detection and a privacy-safe proxy to anonymize your online activity. Gblock currently blocks over 12,800 spy pixels and supports users in North America and Europe with its proxy servers.
Gblock Interface & Screenshots

Gblock Official screenshot of the tool interface
What Can Gblock Do? Key Features
Spy Pixel Protection
Gblock detects and blocks invisible tracking pixels (1x1 images) embedded in emails. These pixels typically send back data about when you opened the email, your location, and device details without your consent. By blocking them, Gblock ensures your email interactions remain private.
Tracking Link Protection
Gblock strips tracking parameters from URLs in emails and uses a proxy server to anonymize link clicks. This prevents senders from gathering data through custom tracking codes or shortened URLs. The proxy is privacy-safe, doesn’t store personal data, and can be disabled if needed.
Automated Tracker Detection
Unlike extensions relying on static lists, Gblock dynamically identifies new trackers in real time. It analyzes and blocks emerging trackers automatically, ensuring continuous protection without manual updates.
Privacy-Safe Proxy
Gblock’s proxy servers mask your IP address when clicking email links, preventing location and device tracking. Proxies are located in North America and Europe, with caching to speed up link resolution for frequently shared trackers.
Custom Filters
Users can create custom filters to block or allow specific trackers, offering granular control over email privacy settings.
Best Gblock Use Cases & Applications
Personal Privacy Protection
Prevent senders from knowing when you open emails or your location, ideal for avoiding invasive marketing tactics.
Professional Confidentiality
Journalists and lawyers can protect sensitive communications, while recruiters avoid signaling engagement with job applicants.
Competitive Analysis
Safely analyze competitors’ email campaigns without revealing your activity.
How to Use Gblock: Step-by-Step Guide
Install the Gblock extension from the Chrome Web Store.
Sign up for a free 30-day trial (no payment required).
Enable the extension in Gmail—it automatically starts blocking spy pixels and tracking links.
Adjust proxy settings in your account if desired (e.g., disable it for specific emails).
Use custom filters to fine-tune tracker blocking rules.
Gblock Pros and Cons: Honest Review
Pros
Considerations
Is Gblock Worth It? FAQ & Reviews
Yes, proxy anonymization can be turned off in account settings, though this disables tracking link protection.
No—to them, it appears you never opened the email or clicked links.
Over 12,800, including Mailchimp, HubSpot, and Google Analytics. New trackers are added dynamically.