Source Wireframe Kit - Library of 537 blocks for desktop and mobile prototyping
CThruView Transparent Image Viewer - CThruView is a free transparent image viewer that allows mouse clicks to go through the image.
Contra Wireframe Kit - Open source wireframe kit for design and prototyping 🚀
LayerX - An intuitive app to display transparent images on screen.
Platforma - Wireframe library of layouts and UI elements
PixelPerfect - Allows developers to put a semi-transparent image overlay over the top of the developed HTML and...