Gblock is a Gmail extension that blocks email tracking and protects your privacy.
Block email tracking in Gmail
Email privacy is our priority, say no to spy pixels!
Blocking Over 11224 Spy Pixels
Full Protection Against Email Tracking
Gblock protects you from spy pixels, tracking links and anonymizes you via our proxy. Our automated tracker detection keeps us one step ahead of new trackers. No other Browser extension offers this level of protection!
Spy Pixel protection
Spy pixel tracking is a sneaky technique based on adding an invisible 1x1 image, known as a "tracking pixel" to an email. When you open the email, this pixel sends information back to the sender, revealing details like when you opened it, where you were, and what device you used. All of this is done without your knowledge or consent, making it a serious privacy concern.
Gblock detects and blocks tracking pixels, providing complete protection against spy pixel tracking.
Tracking links protection
Link tracking involves adding custom tracking parameters to URLs, such as "?utm_source=newsletter", or embedding unique tracking codes. Some email marketing tools take this a step further by using URL shorteners to obscure the final destination, making it impossible to remove tracking parameters. Similar to spy pixels, tracking links can expose your location, device details, and other personal information.
Gblock protects you from tracking links in two ways: Stripping all known tracking parameters from URLs, and using our proxy server to follow email links, masking your IP address and fully anonymizing your activity. Our proxy is privacy-safe, It never stores personal data and can be disabled in your account settings if preferred. Additionally, our proxy caches redirect responses, so if a public tracking link is shared among multiple users, we already know the final destination and can serve it directly without accessing it. We are confident this would cover you for 99% of the cases.
Automated tracker detection
Other Browser extensions rely on static lists that require frequent manual updates. But as trackers constantly evolve, this outdated approach becomes less effective. Only Gblock offers a truly intelligent solution with automated tracker detection. Instead of fixed lists, our advanced system dynamically identifies and flags new trackers in real-time. The moment Gblock encounters a new tracker, it analyzes its behavior and reports it to our server—ensuring that future emails containing the same tracker are automatically blocked.
Use Cases
Personal Privacy Protection
- Block email trackers (know when, where, and if you open emails)
- Hide your IP address and location from senders
- Avoid invisible read receipts
Professional & Business Use
- Journalists & lawyers: protect confidentiality with sources or clients
- Recruiters & HR: review applications without sending engagement signals
- Corporate employees: block marketing trackers in newsletters and outreach emails
Marketing & Competitive Intelligence
- Safely analyze competitor newsletters
- Test how email marketing tools embed and behave with trackers
Tech-savvy & Security-conscious Users
- Strengthen Gmail privacy alongside VPNs and ad blockers
- Investigate and study tracking techniques
Freelancers & Consultants
- Keep your email reading habits private when negotiating rates or deliverables
Regulatory & Compliance-focused Users
- Help companies reduce third-party tracking exposure
- Support GDPR and privacy best practices
Frequently asked questions
Here are a few reasons why you should block email tracking:
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Reply to Messages with Confidence – Take ChargeBy blocking email trackers, you can reply confidently, assured that the sender can't collect data about your email interactions: They don't know when you opened their email, how many times you viewed it, or if you clicked on any links.
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Halt Spammers in Their TracksWhen you block embedded trackers you’re in control, ensuring that spammers can’t gather insights about your activity.
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Guard Yourself Against Persistent SalespeopleWhile many salespeople are great, some simply don’t know when to stop. If you’ve been inundated by emails from an overly eager salesperson, it’s likely they used a tracker to monitor your email behavior.
Gblock is a comprehensive solution for protecting your privacy in Gmail. It shields you from spy pixels and tracking links, offering robust protection against email tracking. Our proxy, fully anonymizes you by hiding your IP address from mail trackers. Our automated tracker detection logic ensures that we are always one step ahead of new trackers. There's no other Browser extension that offers the same level of protection! And of course, Gblock does not track any of your activity.
Yes, please do! Install Gblock and you have a free 30 days trial, no payment information required.
- Spy pixel protection
- Automated tracker detection
- Link tracking protection
- Privacy-safe proxy anonymization
- Email customer support
- Software updates
Our proxies are available in North America and Europe. You will be connected to the closest location based on the country you select during sign-up. You can change this at any time in your Account settings.
Our proxy is privacy-safe, It never stores personal data. If you prefer, you can disable proxy anonymization from the account settings page. Please note that doing so will also disable tracking links protection
You can bypass the proxy by holding Shift and clicking the link. This will open the link in a new window, skipping the proxy.
Gblock detects the vast majority of email trackers and automatically blocks them. When a new tracker appears in an email you view, Gblock detects it in real-time and blocks it. Our current list includes 11224 trackers and is growing every day.
Here are just a few examples:
- ActionKit
- Adobe
- Amazon
- Campaign
- Campaign
- CloudHQ
- ConvertKit
- Customer.io
- DZone
- Drip
- Dropbox
- Eventbrite
- FreshMail
- GMass
- Hubspot
- Hunt
- Mailchimp
- Mailgun
- Mandrill
- Monitor
- PayPal
- Product
- Quora
- Salesforce
- SendGrid
- Signal
- Sparkpost
Found a sneaky tracker that Gblock missed? Write us at tracker@gblock.app.
You can create custom filters using the custom filters UI to block or allow custom trackers.
Gblock keeps your email activity private. Senders won’t know you’re using it, to them, it will just seem like you never opened their messages or interacted with any links.