Velocity

Velocity is a Figma plugin designed for conducting AI-driven user testing and simulations on interface prototypes before human testing. It runs hundreds of simulated participant sessions to generate actionable UX performance metrics such as success rates, time-on-task, miss-clicks, drop-off rates, and WCAG accessibility reviews. The tool outputs heat-mapped reports directly inside the canvas to help designers validate early design decisions, iterate on prototypes, and build confidence prior to user handoff.