monaco-editor
Address: github.com/Microsoft/m…
Microsoft’s official VS Code Code editor module can be run in the browser.
code-server
Address: github.com/codercom/co…
VS Code runs on the server, supports most plug-ins, and can be used in the browser.
StackBlitz
Website: stackblitz.com
An online IDE for Web applications.
Theia
Website: www.theia-ide.org/
Browser-based IDE.