GrammaTech ConfINE is a commercial threat modeling solution by GrammaTech. SeaSponge is a free threat modeling solution. Features, integrations, deployment and the company behind each one, side by side.
Framework for modeling access control and attack graphs in networked systems
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.
GrammaTech ConfINE fits if you need to run it on your own servers and you are an enterprise.
SeaSponge fits if you want a cloud product, you are a startup or a small business, you need a free product and you want an open-source product.
Common questions when comparing GrammaTech ConfINE vs SeaSponge for threat modeling.
GrammaTech ConfINE: Framework for modeling access control and attack graphs in networked systems, built by GrammaTech.
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.
GrammaTech ConfINE is made by GrammaTech. 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. GrammaTech ConfINE and SeaSponge are both Threat Modeling products, and both cover Threat Modeling. Key differences: GrammaTech ConfINE 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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