Best Prototyping Software in 2026 · page 2

Pencil Project

Pencil Project is a free, open-source desktop tool for creating GUI mockups, wireframes, and diagrams.

Balsamiq Wireframes

Balsamiq Wireframes is a wireframing and prototyping tool available for macOS, Windows, and the web, with both desktop and cloud deployment.

Mockapp

Mockapp converts UI designs into installable mobile prototypes for previewing and testing interfaces before development.

Quant-UX

Quant-UX is a research, usability and prototyping tool for creating interactive designs and collecting data-driven insights.

PVSio-Web