Spur – A fun and easy way to critique your visual design

Spur is an app that is an easy way to critique your web designs in ways you’ve never done before. Just paste a URL (or upload an image) and you’ll be able to use seven different tools (Grayscale, Intersections, Contrast, Blur, Mirror, Rotate, 50% Zoom) to help you find what’s working and see things you might have missed.

Spur generates a unique URL you can use to share your design with any of the tools applied to it.