While the idea of a portable, zero-installation version of Visio that you can run straight from a USB drive sounds convenient, the reality behind these downloads presents serious risks to your digital security. What is "Microsoft Visio Portable"?
Draw.io is the most popular free alternative to Visio. It is completely open-source, features no hidden costs, and integrates perfectly with Google Drive, OneDrive, and GitHub. microsoft visio portable free download