IriusRisk Threat Modeling Platform is a commercial threat modeling tool by IriusRisk. SeaSponge is a free threat modeling tool. Compare features, ratings, integrations, and community reviews side by side to find the best threat modeling 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:
Product and application security teams building cloud-native architectures need IriusRisk Threat Modeling Platform to catch design-phase vulnerabilities before they reach code, which is where threat modeling actually prevents costly rewrites. The platform's automated threat generation across software architectures and supply chain risk visibility directly address NIST GV.SC, cutting the manual effort that makes most teams skip threat modeling altogether. Skip this if your organization treats threat modeling as a compliance checkbox rather than a design discipline; IriusRisk assumes you'll act on what it finds.
Teams building threat models for the first time or teaching threat modeling to developers should start with SeaSponge; its web-based interface and visual-first design eliminate the friction that kills adoption of desktop tools or spreadsheet-based approaches. The free pricing and 281 GitHub stars signal active maintenance and community use, rare for threat modeling tools that usually languish after launch. Skip this if your team needs deep integration with your existing security tools or collaborative features at enterprise scale; SeaSponge prioritizes simplicity over extensibility.
Automated threat modeling platform integrating security into the SDLC.
SeaSponge is an accessible web-based threat modeling tool with a focus on accessibility, aesthetics, and intuitive user experience.
Access NIST CSF 2.0 data from thousands of security products via MCP to assess your stack coverage.
Access via MCPNo reviews yet
No reviews yet
Explore more tools in this category or create a security stack with your selections.
Common questions about comparing IriusRisk Threat Modeling Platform vs SeaSponge for your threat modeling needs.
IriusRisk Threat Modeling Platform: Automated threat modeling platform integrating security into the SDLC. built by IriusRisk. headquartered in Spain. Core capabilities include Automated threat modeling across software architectures, Trust zone creation to define organizational and third-party security boundaries, Software supply chain risk visibility and scoping..
SeaSponge: SeaSponge is an accessible web-based threat modeling tool with a focus on accessibility, aesthetics, and intuitive user experience..
Both serve the Threat Modeling market but differ in approach, feature depth, and target audience.
Get strategic cybersecurity insights in your inbox
