Best Cloud Vulnerability Scanners in 2026
Updated
In short: Intruder is ranked #1 of 24 as of 5 October 2026, ahead of Prowler Cloud and Cy5 Cloud-Native Vulnerability Management. The best-ranked option with a free plan is Prowler Cloud. The lowest first paid tier on this page is Alibaba Cloud Security Center at $1/mo.
Cloud vulnerability scanners help assess vulnerabilities and related security concerns across cloud environments and workloads. Compared on cloud platforms and deployment model, the entries also distinguish capabilities such as attack path analysis, identity analysis, IaC scanning, and workload scanning. Those dimensions can help you focus on the environments and areas you need to examine. Free-plan availability and paid-from pricing provide additional context when considering fit. Intruder, Prowler Cloud, and Cy5 Cloud-Native Vulnerability Management are among the listed options, along with Qualys TotalCloud and Kubescape. Use the stated platform support and scanning capabilities to compare which tools align with your cloud setup and assessment needs.
24 cloud vulnerability scanners ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Cloud Vulnerability Scanners, ranked on how quickly a newcomer can get going. 14 of the 24 on this page can be tried for free.
- 1 IntruderFree plan
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: yes
- 2 Prowler CloudPaid from $99/mo
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 3 Cy5 Cloud-Native Vulnerability ManagementFree plan
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 4 Onam Security API SecurityPaid from $22/mo
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 5 Qualys TotalCloudFree plan
- Free to practise on: yes
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 6 KubescapeFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 7 Mondoo CSPMFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 8 GrypeFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 9 RapidFortFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 10 TrivyFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 11 ZeusCloudFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 12 Astra SecurityPaid from $58.25/mo
- Free to practise on: not on record
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 13 Cyscale CSPMPaid from $850/mo
- Free to practise on: not on record
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 14 Amazon Inspector
- Free to practise on: not on record
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 15 AccuKnox
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 16 SUSE Multi-Linux Manager
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 17 OpenCNAPP
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 18 Alibaba Cloud Security CenterPaid from $1/mo
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 19 Google Artifact Analysis
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 20 Tencent Cloud CDNPaid from CNY 21/mo
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 21 Tencent Cloud Security Center
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 22 Holm Security Cloud Security
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 23 Tenable One Cloud Security
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 24 Anchore Enterprise
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
Compare all 24 in a table
| # | Platform | Score | Free plan | From | Free plan | Paid from | Cloud platforms | Workload scanning |
|---|---|---|---|---|---|---|---|---|
| 1 | Intruder | 7.8 | Free plan | Free | Yes | — | — | — |
| 2 | Prowler Cloud | 7.7 | Free plan | $99/mo | No | — | — | — |
| 3 | Cy5 Cloud-Native Vulnerability Management | 7.6 | Free plan | Free | — | — | AWS, Azure, GCP | Yes |
| 4 | Onam Security API Security | 7.5 | Free plan | $22/mo | Yes | — | — | — |
| 5 | Qualys TotalCloud | 7.5 | Free plan | Free | No | — | AWS, Microsoft Azure, Google Cloud Platform, Oracle Cloud Infrastructure | — |
| 6 | Kubescape | 7.2 | Free plan | Free | Yes | — | — | — |
| 7 | Mondoo CSPM | 7.2 | Free plan | Free | Yes | — | — | — |
| 8 | Grype | 7.1 | Free plan | Free | Yes | — | — | — |
| 9 | RapidFort | 7.1 | Free plan | Free | Yes | — | — | — |
| 10 | Trivy | 7.1 | Free plan | Free | Yes | — | — | — |
| 11 | ZeusCloud | 7.0 | Free plan | Free | Yes | — | AWS | — |
| 12 | Astra Security | 6.8 | No | $58.25/mo | Yes | — | — | — |
| 13 | Cyscale CSPM | 6.6 | No | $850/mo | No | — | — | — |
| 14 | Amazon Inspector | 6.5 | No | — | No | — | — | — |
| 15 | AccuKnox | 6.4 | No | — | Yes | — | AWS; Azure; GCP; Oracle; OpenStack; OpenShift; Nutanix; VMware; IBM Cloud; DigitalOcean; Alibaba Cloud | — |
| 16 | SUSE Multi-Linux Manager | 6.4 | No | — | — | — | — | — |
| 17 | OpenCNAPP | 6.3 | No | — | — | — | — | — |
| 18 | Alibaba Cloud Security Center | 6.2 | No | $1/mo | Yes | — | Alibaba Cloud, AWS, Azure, Huawei Cloud, Tencent Cloud, Volcano Engine | Yes |
| 19 | Google Artifact Analysis | 6.2 | No | — | No | — | — | — |
| 20 | Tencent Cloud CDN | 6.1 | No | CNY 21/mo | Yes | — | Tencent Cloud and other cloud platforms | Yes |
| 21 | Tencent Cloud Security Center | 5.9 | No | — | Yes | — | Tencent Cloud and other cloud platforms | Yes |
| 22 | Holm Security Cloud Security | 5.8 | No | — | — | — | AWS, Microsoft Azure, Microsoft 365, Google Cloud, Oracle Cloud | — |
| 23 | Tenable One Cloud Security | 5.8 | No | — | — | — | — | — |
| 24 | Anchore Enterprise | 5.4 | No | — | No | — | — | — |
Is your platform on this list?
Numbered spots on this list can be sponsored, and a sponsored row is labelled as paid.
Questions about this list
Which cloud vulnerability scanner is ranked first on The Geeks Club?
Intruder is ranked #1 of 24 with a score of 7.8. Prowler Cloud is second and Cy5 Cloud-Native Vulnerability Management third.
How many of these have a free plan?
11 of the 24 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Alibaba Cloud Security Center has the lowest first paid tier we found: $1/mo.
How is this list ranked?
Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on.