IriusRisk Threat Modeling is a commercial threat modeling solution by IriusRisk. SeaSponge is a free threat modeling solution. Features, integrations, deployment and the company behind each one, side by side.
Threat modeling platform for identifying & managing software security risk by design.
SeaSponge is an accessible web-based threat modeling tool with a focus on accessibility, aesthetics, and intuitive user experience.
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Based on what each listing shows: deployment, company size, price and open source.
IriusRisk Threat Modeling fits if you are an enterprise.
SeaSponge fits if you need a free product and you want an open-source product.
Common questions when comparing IriusRisk Threat Modeling vs SeaSponge for threat modeling.
IriusRisk Threat Modeling: Threat modeling platform for identifying & managing software security risk by design. Built by IriusRisk.
SeaSponge: SeaSponge is an accessible web-based threat modeling tool with a focus on accessibility, aesthetics, and intuitive user experience.
The table above shows where their features, integrations, deployment and company size fit differ.
IriusRisk Threat Modeling is made by IriusRisk. SeaSponge is open-source with 281 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. IriusRisk Threat Modeling and SeaSponge are both Threat Modeling products, and both cover Threat Modeling. Key differences: IriusRisk Threat Modeling is Commercial while SeaSponge is Free, SeaSponge is open-source. Use the table above to see where features, deployment and company size fit differ.
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Updated 2026-11-02
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