TouchDevelop - Program your devices directly from your devices with TouchDevelop! You do not need a separate PC.
GitHub Codespaces - GItHub Codespaces is a hosted remote coding environment by GitHub based on Visual Studio Codespaces integrated directly for GitHub.
Ruler for Windows - It's a screen ruler for Windows.
CloudShell - Cloud Shell is a free admin machine with browser-based command-line access for managing your infrastructure and applications on Google Cloud Platform.
Vim - Highly configurable text editor built to enable efficient text editing
StackHive - Design, develop or publish websites right from your browser