Visual Studio Code for the Web can be run entirely in your browser. No local installation is required.
Visual Studio Code is the favorite development editor for many, including myself. I run it locally, installed on my Windows computer. You can now use a lightweight version of it right in your browser. No installation is necessary for Visual Studio Code for the Web.
Check it out here: https://vscode.dev
The web version does have a few restrictions and limitations compared to the desktop installation, but as a lightweight editor it is well suited. Microsoft has published more details about it here.
The looks of it is just like the desktop version and you will feel right at home when you launch it in your browser.