crawley vs Vulneri ASM: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
crawley is a free external attack surface management tool. Vulneri ASM is a commercial external attack surface management tool by Vulneri. 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 NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:
Security teams building custom reconnaissance workflows or integrating web discovery into existing automation pipelines should start with Crawley; it's free, written in Go for speed, and handles multiple protocols and authentication methods that most off-the-shelf crawlers require workarounds to support. The 308 GitHub stars reflect active maintenance and real-world use rather than enterprise polish. Skip this if you need a GUI, managed hosting, or out-of-the-box reporting; Crawley is deliberately a building block, not a finished product.
Mid-market and enterprise teams drowning in false positives from their current ASM tool will find real value in Vulneri ASM's exploitability validation, which actually confirms which discovered assets pose immediate risk rather than just flagging everything. The platform covers ID.AM and ID.RA functions across cloud, SaaS, and on-premises infrastructure while automating ownership assignment to cut response friction. This is not the pick for organizations needing mature vendor support or a lengthy implementation runway; Vulneri is a seven-person shop based in Brazil, so you're buying technical strength and speed over hand-holding.
