Chrome Developer Tool - Develop and Debug Chrome Apps & Extensions. By Google
FlowMapp - FlowMapp is a UX planning tool for creating visual sitemaps and user flow.
Spaceship ZSH - Powerful, customizable Zsh prompt, your own spaceship 🚀
Octopus.do - Build your website structure in real-time and rapidly share it to collaborate with your team or clients. Start prototyping websites or apps instantly.
GitHub Student Developer Pack - The best developer tools, free for students.
DYNO Mapper - Create Sitemaps with the DYNO Mapper Visual Sitemap Generator.