snort is described as 'Snort® is an open source network intrusion prevention and detection system (IDS/IPS) developed by Sourcefire. Combining the benefits of signature, protocol, and anomaly-based inspection, Snort is the most widely deployed IDS/IPS technology worldwide' and is a Network Monitor in the network & admin category. There are more than 10 alternatives to snort for a variety of platforms, including Linux, Windows, Mac, Self-Hosted and SaaS apps. The best snort alternative is HookProbe , which is both free and Open Source. Other great apps like snort are Suricata, LOKI Free IOC Scanner, Arkime and Maltrail.