Chrome Developer Tool - Develop and Debug Chrome Apps & Extensions. By Google
UX Archive Animated - iOS apps animated user flows
Spaceship ZSH - Powerful, customizable Zsh prompt, your own spaceship 🚀
Really Good UX - A library of screenshots for UX inspiration
GitHub Student Developer Pack - The best developer tools, free for students.
UX Recipe for iOS - Design checklist & estimation tool for your next UX project