GitHub Codespaces - GItHub Codespaces is a hosted remote coding environment by GitHub based on Visual Studio Codespaces integrated directly for GitHub.
CloudShell - Cloud Shell is a free admin machine with browser-based command-line access for managing your infrastructure and applications on Google Cloud Platform.
StackHive - Design, develop or publish websites right from your browser
replit - Code, create, andlearn together. Use our free, collaborative, in-browser IDE to code in 50+ languages — without spending a second on setup.
Djit.su - Djit.su is a development environment where you can write and deploy your code. Host a website that you code on Djit.su for free in a single click. Djit.su is the PhotoShop of coding.
StackBlitz - Online VS Code Editor for Angular and React