Firewalls are designed for both a single computer and a network. Host-based Firewall and Network-based Firewall. A host-based firewall is an inbuilt or third-party application installed on individual workstations or servers that monitors incoming and outgoing activities.
Best Free Host-based Firewalls for Windows PC
1. ZoneAlarm
2. PeerBlock
3. Comodo Free Firewall
4. TinyWall
5. OpenDNS
6. GlassWire
7. NetDefender
8. Outpost Firewall
9. Windows Firewall
Windows Firewall is an inbuilt application in all Microsoft Windows OS versions.