A comprehensive list of research tools.

Interactive prototyping tool designed for speed.

Tool for interactive and animated prototypes.

Advanced prototyping and collaboration tool.

Minimalistic wireframing tool for simplicity and clarity.

Prototyping tool for web and mobile app simulation.

For designing animated and interactive UIs.

Creates interactive prototypes and specifications.

Open-source GUI prototyping tool.

Tool from Facebook Design for interactive UIs.

Platform for interactive mockups for web and mobile.

Rapid wireframing tool for faster design work.

Tool for wireframes, mockups, diagrams, and prototypes.