All Tools
Apple Design Resources
Apple Design Resources offer great UI kits and guidelines to help you design apps quickly and accurately using Sketch, Photoshop, and XD templates.
UI Kits
Get UI Kit
Get UI Kit is a lightweight and modular front-end framework for developing fast and powerful web interfaces.
UI Kits
Inside Design Resources
Inside Design by InVision offers free design resources including high-quality UI kits, icon packs, mockups and more.
UI Kits
CSS-Tricks Guide to Flexbox
CSS-Tricks’ comprehensive guide to CSS Flexbox layout explains everything about flexbox, focusing on all the different possible properties for the parent and child elements.
Guides & References
Apple Marketing Resources
Apple’s Developer Marketing Resources offer great mockups for all their devices, free to use when designers and developers want to market their work.
Mockups
CSS Matic
CSS Matic offers great CSS tools and generators for web designers and developers. CSS Box-Shadow, Border-Radius, Gradients and more.
Generators
SVG Icons by Sparkk
Free, ready to use SVG icons for the web. All icon sets are from free Dribbble shots with the original link so you could download them.
Icons
The Pattern Library
The Pattern Library is a collection of unique patterns and backgrounds, which are free for you to use as heart desires.
Textures & Patterns
SaaS Pages
Saas Pages is a collection of the best-practices in landing pages with a focus on copywriting and design, to help guide you on your next project.
Guides & References