Zorp GPL is a next generation, open source proxy firewall with deep protocol analysis. It allows you to inspect, control, and modify traffic on the application layer of the ISO/OSI model. Decisions can be made based on data extracted from the application-level traffic (for...
Untangle Alternatives
Untangle has been discontinued. Similar apps include OpenWrt, which is free and open source. Other options are OPNsense, pfSense, DD-WRT and Univention Corporate Server (UCS). There's no shortage of Firewalls like Untangle, with more than 25 alternatives for Linux, self-hosting, Windows, the web and iPhone.
Alternatives list
ufdbGuard is a URL filter to block unwanted web content on the internet. ufdbGuard can also enforce Google SafeSearch, detect UltraSurf, Tor, Skype and other chat applications, proxy tunnels and enforce safer HTTPS traffic. ufdbGuard supports the YouTube edufilter.
Cost / License
- Freemium
- Open Source
Platforms
- Linux

Vilfo OS is an easy and powerful software enabling multiple simultaneous connections to VPN servers. It contains firewall, split tunneling, DNS leak protection, VPN killswitch, notifications and much more.
Cost / License
- Paid
- Proprietary
Application typeApplication types
Platforms
- Self-Hosted
Sweden
EU













