Design, prototype, test.
All in one tool.
Transform your static designs into interactive prototypes.
Validate your ideas early and see them work on the real device.

Hassle-free conversion of your prototypes for different device sizes. Simply duplicate your project, select your new device and Proto.io will adjust the font-sizes, border width, width, height, width position and height position of all your UI elements on canvas to respect the new device properties and Device-Pixel Ratio.
When a UI element is dropped on the canvas, it will adapt itself to the project's selected device resolution and Device-Pixel Ratio (DPR).
Note: Older Proto.io projects are fully compatible with this new feature. However, you will be asked to auto-upgrade each project built with the previous UI libraries, the next time you will try to edit it.
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