Best Nessus alternatives in 2026
13 direct alternatives to Nessus, compared on pricing, features, and best-for use cases. Pick the right replacement without the marketing fluff.
Curated by Louis Corneloup · Updated Why people consider alternatives to Nessus
Nessus scans for vulnerabilities across networks and systems. The scanner security professionals have used for decades-vulnerability assessment that's proven. The scanning is comprehensive. The database is current. Teams most often switch away when one of these starts to bite:
- •Pricing at scale as usage or premium tiers add up.
- •Missing integrations with the rest of your stack.
- •Performance or scale limits as your needs grow.
- •A specific feature gap you have hit in vulnerability scanning.
The 13 alternatives below cover the same core job (vulnerability scanning) with different trade-offs. Ranked by real-signal score: G2 and Capterra ratings, media mentions, and editor review. No paid placement.
13 alternatives to Nessus
Ranked by real-signal composite (rankingScore + community + reviews) and direct relevance to Nessus.
- 1
Veeam
FreemiumCheaper than NessusUnified data protection, security, and resilience for hybrid environments and AI workloads.
Direct alternative4.6(1,392)Compare Nessus vs Veeam → - 2
Otterize
PaidAI-native data security platform for cloud, SaaS, on-prem, and AI environments.
Direct alternative4.4(558)Compare Nessus vs Otterize → - 3
Burp Suite
PaidWeb security testing toolkit for penetration testers
Direct alternative4.7(129)Compare Nessus vs Burp Suite → - 4
Teramind
PaidTurn workforce signals into predictive intelligence for insider threat detection and productivity optimization.
Direct alternative4.6(148)Compare Nessus vs Teramind → - 5
Mosyle
FreemiumCheaper than NessusThe only Apple Unified Platform for comprehensive device management and security.
Direct alternative4.6(122)Compare Nessus vs Mosyle → - 6
SecurityScorecard
FreemiumCheaper than NessusDetect, prioritize, and remediate vendor risk across your entire supply chain at scale.
Direct alternative4.4(101)Compare Nessus vs SecurityScorecard → - 7
Varonis
PaidAutomated data security, posture management, and threat prevention powered by AI.
Direct alternative4.6(101)Compare Nessus vs Varonis → - 8
CSPi Network
PaidSolving complex technology and security challenges with high-performance products and comprehensive IT services.
Direct alternative4.3(67)Compare Nessus vs CSPi Network → - 9
Checkmarx
PaidApplication security testing platform
Direct alternative4.2(65)Compare Nessus vs Checkmarx → - 10
CloudSploit
PaidGain a complete and prioritized view of your cloud security risk in real-time.
Direct alternativeCompare Nessus vs CloudSploit → - 11
Netwrix
PaidUnified data security that starts with identity, protecting your organization from evolving threats.
Direct alternativeCompare Nessus vs Netwrix → - 12
Terra Security
PaidAgentic AI platform for continuous penetration testing, combining AI scale with human supervision.
Direct alternativeCompare Nessus vs Terra Security → - 13
IP Fabric
PaidBuild a network digital twin for total visibility and control over your entire IT estate.
Direct alternativeCompare Nessus vs IP Fabric →
Frequently asked questions
What is the best alternative to Nessus?
Based on real-signal scoring (G2 and Capterra ratings, media mentions, and editorial review), the top alternatives to Nessus are Veeam, Otterize, Burp Suite. Each solves the same core job with different trade-offs on pricing, features, and integrations.
Is there a free alternative to Nessus?
Yes. Veeam is one of the freemium alternatives to Nessus listed here (Unified data protection, security, and resilience for hybrid environments and AI workloads). Other freemium options are flagged in the list below.
Why do people look for Nessus alternatives?
Common reasons teams switch away from Nessus: pricing that scales aggressively, missing integrations with the rest of their stack, performance or scale limits, or a specific feature gap in vulnerability scanning. The alternatives on this page solve the same core problem with different trade-offs.
Side-by-side comparisons
In-depth comparison pages for Nessus versus each alternative.
Still considering Nessus?
See the full review, pricing breakdown, and community feedback before you decide.