CSS Wand - Easy copy-paste beautiful CSS animations
LibHunt - LibHunt tracks mentions of software libraries on relevant social networks. Based on that data, you can find the most popular projects and their alternatives.
App Animations - Gallery of beautiful iOS animations to inspire your next app
AlternativeTo - AlternativeTo lets you find apps and software for Windows, Mac, Linux, iPhone, iPad, Android, Android Tablets, Web Apps, Online, Windows Tablets and more by recommending alternatives to apps you already know.
Tailwind CSS - A utility-first CSS framework for rapidly building custom user interfaces.
GitSpo - Measure & engage your open-source community