OWASP Amass vs Censys Attack Surface Management

OAOWASP Amass8.8Visit Censys Attack Surface Management8.2Visit

Higher score OA OWASP Amass #2 in OSINT Tools 8.8/10 Free plan Free plan✓ 1 of 6 features Visit OWASP Amass

vs

Censys Attack Surface Management #4 in OSINT Tools 8.2/10 Pricing on request ✓ 1 of 6 features Visit Censys

• OWASP Amass fits best

  Free, self-hosted external asset reconnaissance

• Censys Attack Surface Management fits best

  Continuous external attack-surface investigations

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Side by side

Feature	OAOWASP Amass 8.8/10 Visit ↗	Censys Attack Surface Management 8.2/10 Visit ↗
At a glance
Editor score	8.8	8.2
Ranking	#2 in OSINT Tools	#4 in OSINT Tools
Best for	Free, self-hosted external asset reconnaissance	Continuous external attack-surface investigations
Pricing model	Free	Paid
Starting price	Free plan	Pricing on request
Free plan	✓ (best)	Not checked yet
Free trial	—	—
Deployment	Self-hosted	Cloud
Platforms	Windows, macOS, Linux	Web
Support	Email, Community, Docs	Email, Docs
Built for	Solo, Small business, Mid-market, Enterprise	Mid-market, Enterprise
Features OWASP Amass 1/6 · Censys Attack Surface Management 1/6
Social source search	Not checked yet	Not checked yet
Domain & IP lookup	Not checked yet	Not checked yet
Monitoring & alerts	Not checked yet	Not checked yet
Link analysis	Not checked yet	Not checked yet
API access	✓	✓
Data export	Not checked yet	Not checked yet
Our review
Pros	External asset discovery with active reconnaissance and attack-surface mapping Open Asset Model and asset database organize findings and relationships Cross-platform deployment with Docker, Docker Compose, and a REST API	Continuously monitors internet-facing assets for exposure changes. Connects AWS, Google Cloud, and Azure resources to asset visibility. Maps asset relationships and supports remediation through security integrations.
Cons	Command-line workflow may require technical security expertise Self-hosted deployment leaves operations to your team Focuses on external assets rather than broader investigations	Sales-led pricing makes costs harder to compare upfront. Its security focus is less suited to general OSINT research. Cloud deployment and email or documentation support may not fit every workflow.
Our verdict	OWASP Amass is an open-source framework for security teams, penetration testers, and organizations assessing internet-facing infrastructure. It combines open-source intelligence collection, active reconnaissance, external asset discovery,… Read the review →	Censys Attack Surface Management discovers and monitors an organization’s internet-facing assets, including hosts, domains, certificates, services, and cloud resources. External scanning and attribution help build an inventory, identify… Read the review →

Strengths and trade-offs

• OWASP Amass — where it wins

  • External asset discovery with active reconnaissance and attack-surface mapping
  • Open Asset Model and asset database organize findings and relationships
  • Cross-platform deployment with Docker, Docker Compose, and a REST API

  Where it doesn't

  • Command-line workflow may require technical security expertise
  • Self-hosted deployment leaves operations to your team
  • Focuses on external assets rather than broader investigations

• Censys Attack Surface Management — where it wins

  • Continuously monitors internet-facing assets for exposure changes.
  • Connects AWS, Google Cloud, and Azure resources to asset visibility.
  • Maps asset relationships and supports remediation through security integrations.

  Where it doesn't

  • Sales-led pricing makes costs harder to compare upfront.
  • Its security focus is less suited to general OSINT research.
  • Cloud deployment and email or documentation support may not fit every workflow.

• OAOWASP Amass8.8/10 · Free plan

  A self-hosted OSINT framework for mapping internet-facing assets and relationships.

  Visit OWASP AmassFull verdict →
• Censys Attack Surface Management8.2/10 · Pricing on request

  Continuous asset discovery and exposure monitoring for security-focused teams.

  Visit CensysFull verdict →