Can't Unsee — an eye-training game for interface details
Compare similar interfaces, choose the stronger option, and practice noticing spacing, typography, alignment and icon details.
Resources
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UI/UX 4
Sliick – Free 3D Device Mockups
A browser editor for presenting screenshots and videos in 3D phone and tablet mockups, with ready-made scenes and local exports.
UX Pilot Gradient Generator – Gradients & Textured Backgrounds
A browser-based gradient studio with color, texture and motion controls, plus previews inside interface layouts.
WhoCanUse: color contrast and vision simulations
A free browser tool for checking text and background contrast, with WCAG grades and previews of different vision conditions and screen-viewing situations.