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On the recordRead 7 Oct 202618 facts
Zen Ad Blocker
Plans and prices
Free
Free
System-wide ad blocking · Open source · Windows, macOS, and Linux support
Read 20 Sep 2026 · irbis.sh
Zen
Free
Free and open source (MIT) · Windows, macOS, Linux
Read 7 Oct 2026 · irbis.sh
On the record
- Browser and app compatibility
- Zen works with major browsers including Chrome, Firefox, Safari, Edge, Opera, and Brave, plus desktop apps that use system proxy settings.irbis.sh · read 7 Oct 2026
- Browser support
- major-browsersirbis.sh · read 20 Sep 2026
- Compatibility limits
- Apps with custom networking or certificate pinning may bypass filtering or need to be excluded in Zen’s settings.irbis.sh · read 7 Oct 2026
- Cookie popup blocking
- Yesirbis.sh · read 20 Sep 2026
- Custom filter lists
- Yesirbis.sh · read 20 Sep 2026
- Device coverage
- desktopirbis.sh · read 20 Sep 2026
- Filtering method
- Zen runs a local proxy, checks requests against filter lists, and filters HTTP(S) traffic on the device.irbis.sh · read 7 Oct 2026
- Filter lists
- Zen includes built-in ad, tracker, and malware lists, including 35 regional lists, and supports adding lists or custom rules.irbis.sh · read 7 Oct 2026
- HTTPS certificate
- Zen generates its local root certificate and private key on the device, and the certificate can be removed in settings.irbis.sh · read 7 Oct 2026
- Privacy
- The maker says Zen does not collect browsing data or send it to servers; its privacy policy says local debug logs have hostnames redacted and can be deleted.irbis.sh · read 7 Oct 2026
- Real-time visibility
- Zen shows blocked ads, trackers, and background requests, including where each came from and why it was stopped.irbis.sh · read 7 Oct 2026
- Security reporting
- The security policy says only the latest app version is actively supported and asks users to report vulnerabilities privately by email.github.com · read 7 Oct 2026
- Support
- Users can get help from maintainers and other users on Discord and report bugs or suggest features on GitHub.irbis.sh · read 7 Oct 2026
- System-wide filtering
- Zen blocks ads, trackers, and malware across browsers and desktop apps.irbis.sh · read 7 Oct 2026
- Third-party services
- Zen uses Cloudflare to serve update manifests, GitHub for source code, downloads and updates, and public filter-list providers for filtering rules.irbis.sh · read 7 Oct 2026
- Update security
- The maker says builds are reproducible and attested, while a verifiable cryptographically signed update system is still in progress.irbis.sh · read 7 Oct 2026
- VPN support
- Zen works with any VPN on Windows and Linux and most VPNs on macOS.irbis.sh · read 7 Oct 2026