Easy User Test - Easy User Test is a user testing tool that offers the easiest way to test your text and design.
SVG Backgrounds - Customize, scalable backgrounds and patterns for free
Useberry - User testing feedback and rich analytics in minutes
MagicPattern - The best design toolbox with 10+ tools for anyone
Peek by UserTesting - Get a free, 5-minute video of someone using your site
Patternify - The CSS pattern generator