The best Ad Blocker alternative to GlassWire is Portmaster, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to GlassWire and five of them are Ad Blockers so hopefully you can find a suitable replacement. Other interesting Ad Blocker alternatives to GlassWire are InviZible Pro, OpenSnitch, TulaByte - System Tor & Firewall and upribox.
Free, open-source privacy suite monitoring all network activity, blocking unwanted connections, using trusted filter lists for ads and malware, enforcing DNS-over-TLS, providing custom app and global rules, and supporting advanced privacy management.
InviZible Pro uses DNSCrypt Protocol, Tor and i2pd (I2P Daemon) (PurpleI2P) to achieve maximum security, privacy and comfortable use of the Internet.
GNU/Linux firewall enabling interactive outbound network filtering, outbound application control, blocking of ads and malware domains, centralized GUI node management, input policy configuration, SIEM integration, real-time alerts, and user-level rule customization.
A fundamental re-design of user Data Privacy. Your multi-tool for online protection. So easy your grandma could use it. Costs less than a cup of coffee per year.
The upribox Software turns your RaspberryPi into a privacy-enhancing Wireless router with adblocking, Tor, and a VPN server.
Austria
EU
Ukraine
Italy
United Kingdom
Powerful control for the tech-savvy. More free firewall blocking options than Glasswire, which only allows 2 blocks for free.