Censys ASM Pricing 2026: Plans, Costs & Free Options
Last Updated: May 2026
Attack surface management platform with continuous internet-wide scanning and asset discovery. This page breaks down Censys ASM's Freemium pricing model, what it includes, and how it compares to free alternatives in the Vulnerability Management category.
Pricing Overview
Pricing Model
Freemium
This means the tool is free to use and typically open-source — you self-host it, customize it, and pay nothing for the software itself.
Is Censys ASM Free?
Yes, Censys ASM is completely free and open-source. You can download, use, and modify it without paying any license fees.
Is Censys ASM Worth It?
Censys ASM is rated 4.4/5 in our Vulnerability Management directory and is completely free, which makes it an easy recommendation for any team that can self-host and manage their own deployment. You get full functionality without licensing costs, though you trade vendor support for community forums and documentation. For Vulnerability Management workflows, Censys ASM delivers strong value, especially for individuals, students, and budget-conscious teams. The main consideration is operational overhead — you own the install, updates, and tuning. If your team has the technical capacity, Censys ASM is well worth adopting.
Cheaper Alternatives
If Censys ASM's pricing is out of budget, these Vulnerability Management tools offer free or freemium options:
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Nuclei Scanner
Free/OSS
Fast open-source vulnerability scanner with template-based detection and community contributions.
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Vicarius vRx
Freemium
Autonomous vulnerability remediation platform using AI-generated patchless protection scripts
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Greenbone OpenVAS
Free/OSS
Open-source vulnerability assessment system with comprehensive network scanning capabilities.
Frequently Asked Questions
How much does Censys ASM cost?
Censys ASM uses a Freemium pricing model. This means the tool is free to use and typically open-source — you self-host it, customize it, and pay nothing for the software itself. For exact current pricing, visit the Censys ASM website directly — vendors update tiers and quotas regularly.
Is there a free version of Censys ASM?
Yes, Censys ASM is completely free and open-source. You can download, use, and modify it without paying any license fees.
What are cheaper alternatives to Censys ASM?
In the Vulnerability Management category, the most popular free or freemium alternatives are Nuclei Scanner, Vicarius vRx, Greenbone OpenVAS. Each offers a comparable feature set at lower or zero cost — see our /alternatives page for full breakdowns.