A nice showcase of small websites by Cosima Mielke on Smashing Magazine.

Lovely Little Websites

A library to create code walkthroughs for the web by writing markdown.

Code Hike

A nice article by Kolby Sisk to increase Reacts performance.

A cool browser plugin to enable a redesigned user interface for Wikipedia.

A zero dependency utility to manage modals in a natural way for React.

A component toolkit for creating live running code editing experience.

Discover similar packages from your package.json dependencies.

CSS custom properties to help accelerate adaptive and consistent design. 

A collection of a hundred free userpics for your design projects.