Tenable Nessus alternatives: 2 apps ranked by verified data
Common reasons people leave Tenable Nessus: free licence lasts 30 days and covers only 5 IPs, and professional costs thousands per year. We ranked 2 alternatives by how directly each one replaces Tenable Nessus, then by reviews, real visits and how recently each app's facts were checked against its own website. ZAP currently ranks first.
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Show all 2 alternativesThe best Tenable Nessus alternative for…
The highest-ranked app in this list for each need.
Best Tenable Nessus alternative for most people
ZAPFree and open source, a better fit if you mainly scan web applications.
Best Tenable Nessus alternative for a free option
ZAPFree and open source, a better fit if you mainly scan web applications.
Best Tenable Nessus alternative for a free plan you can upgrade
Burp SuiteThe standard for hands-on web app testing, with an automated scanner in Pro.
Best Tenable Nessus alternative for open source
ZAPFree and open source, a better fit if you mainly scan web applications.
Best Tenable Nessus alternative for Mac
ZAPFree and open source, a better fit if you mainly scan web applications.
Best Tenable Nessus alternative for Windows
ZAPFree and open source, a better fit if you mainly scan web applications.
Best Tenable Nessus alternative for Linux
ZAPFree and open source, a better fit if you mainly scan web applications.
Tenable Nessus alternatives: common questions
What is the best alternative to Tenable Nessus?
ZAP ranks first right now. Free and open source, a better fit if you mainly scan web applications.
Is there a free alternative to Tenable Nessus?
Yes. ZAP (open source) and Burp Suite (free plan + paid) have a free option. Check each app's verified facts for current plan limits.
Is there an open-source alternative to Tenable Nessus?
Yes: ZAP.
Which Tenable Nessus alternatives work on Linux?
ZAP and Burp Suite run on Linux.
Why do people switch from Tenable Nessus?
The complaints we hear most: free licence lasts 30 days and covers only 5 IPs; professional costs thousands per year; cheaper editions are limited to non-commercial use.
How is this list ranked?
Every app is scored with the same published formula: how directly it replaces Tenable Nessus, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.