ScanCannon vs Scilla: 2026 Comparison
ScanCannon is a free external attack surface management tool. Scilla is a free external attack surface management tool. Compare features, ratings, integrations, and community reviews side by side to find the best external attack surface management fit for your security stack.
CST VerdictBased on our analysis of available product data, here is our conclusion:
Security teams tasked with mapping external IP ranges and subdomain inventory across sprawling networks will find ScanCannon's Python-based enumeration approach faster and more flexible than commercial EASM tools for reconnaissance-heavy phases. The free pricing and 460 GitHub stars signal active maintenance and community trust, which matters when you're running large-scale discovery jobs against your own infrastructure. Skip this if you need continuous monitoring or alert-driven workflows; ScanCannon is a point-in-time reconnaissance tool, not a persistent surface management platform.
Security engineers building their own reconnaissance workflows will appreciate Scilla for its speed at enumerating DNS records, subdomains, and open ports without the overhead of enterprise EASM platforms. The tool is free and maintains active development with over 1,000 GitHub stars, making it viable for teams that need fast, scriptable asset discovery without vendor lock-in. Skip this if your organization needs centralized dashboards, historical tracking of attack surface changes, or integration with incident response platforms; Scilla is a command-line enumeration engine, not a managed service.
