Best firewall of 2021: free and paid software and services

By Tech Radar
Bitdefender Total Security
"Total security with firewall protection"
Avast Premium Security
"Powerful multi-device firewall and more"
Norton 360 Deluxe
"Multi-feature firewall protection and more"
Panda Dome Essential
"Good value firewall and internet security solution"
Webroot AntiVirus
"Lightweight internet security with firewall"
ZoneAlarm
"The best free firewall"
GlassWire
"Beautiful design combined with lots of information"
Comodo Firewall
"Offers a good feature set for a free firewall"
TinyWall
"A lightweight and unobtrusive free firewall"
Windows Defender
"Nothing more to install, this free firewall comes with your PC"
Webroot SecureAnywhere AntiVirus
"Lightweight internet security with firewall"