Threatspec

Awesome Threat Modelling

A curated list of threat modeling resources (Books, courses - free and paid, videos, tools, tutorials and workshops to practice on ) for learning Threat modeling and initial phases of security review.

SecuriCAD

Forseeti - Treat modelling and attack simulations for IT infrastructure

Threat Modelling Tool

Microsoft - Threat model diagramming tool

Threat Dragon

OWASP - Threat model diagramming tool