This is a constantly updated firewall which is excellent in the function of a software firewall. This can block sketchy websites and downloads of malware, look for threats in encrypted data for threats. It has AI enabled software that constantly monitors all the network’s active users. This tool has the capability to block the latest malware even if it is encountered for the first time. 

Download link: https://github.com/fortinet

This site is under maintenance,
some features might not work!!!