Data verified May 2026
ADYour product here. Reach security decision-makers.Launch a campaignGRASSMARLIN Description
GRASSMARLIN provides IP network situational awareness of industrial control systems (ICS) and Supervisory Control and Data Acquisition (SCADA) networks to support network security. Passively map, and visually display, an ICS/SCADA network topology while safely conducting device discovery, accounting, and reporting on these critical cyber-physical systems. Documentation: GrassMarlin v3.2 User Guide: Download PDF View PDF on GitHub A presentation on GRASSMARLIN is also available. Release: Download the latest release. File hashes are located in FileHash.md. License: See LICENSE.md. Disclaimer: See DISCLAIMER.md.
GRASSMARLIN FAQ
Common questions about GRASSMARLIN including features, pricing, alternatives, and user reviews.
GRASSMARLIN is Passively maps and visually displays ICS/SCADA network topology for network security. It is a OT Security solution designed to help security teams with SCADA, Network Topology.
GRASSMARLIN is a free OT Security tool. This makes it accessible for organizations of all sizes, from startups to enterprises. Visit https://github.com/nsacyber/GRASSMARLIN/ for download and installation instructions.
Popular alternatives to GRASSMARLIN include:
1.Armis Threat Detection and Analysis - OT/IoT asset discovery and threat detection platform for industrial environments (Commercial)
2.Dragos Platform Asset Visibility - OT asset discovery and inventory platform for industrial environments (Commercial)
3.Athena Dynamics RAD - Remote maritime IT/OT asset discovery & vuln assessment via software agent. (Commercial)
4.Phosphorus Unified xIoT Security Mgmt Platform - Continuous monitoring & management platform for IoT, OT, IoMT, and IIoT devices. (Commercial)
5.Phosphorus xIoT Global Device Network - Database of 1M+ xIoT/OT/IoMT device profiles for CPS asset coverage. (Commercial)
Compare all GRASSMARLIN alternatives at https://cybersectools.com/alternatives/grassmarlin
GRASSMARLIN is for security teams and organizations that need SCADA, Network Topology. It's particularly suitable for small to medium-sized teams looking for cost-effective solutions. Other OT Security tools can be found at https://cybersectools.com/categories/ot-security
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