The top alternatives to Nmap are Tenable Nessus, Nessus and OpenVAS, ranked by Staquest on relevance, shared use cases, and pricing. Tenable Nessus is the strongest free option.
Staquest ranks Tenable Nessus as the top alternative to Nmap — Industry-standard vulnerability assessment and configuration auditing.. The full ranked list above compares 10 options.
Tenable Nessus offers a free tier and is the highest-ranked free alternative to Nmap in Staquest's analysis.
Staquest identifies 10 tools similar to Nmap using graph relationships, embedding similarity, and shared categories. The closest are Tenable Nessus, Nessus, OpenVAS.
OpenVAS is an open-source alternative to Nmap listed in this ranking.
Alternatives are ranked by verified relationships, semantic similarity, and category overlap.
