Visual Studio Code

Visual Studio Code runs on Windows, Mac, and Linux. VS Code is more of a text editor than an IDE, but it is a very capable one, and it blurs the line between the editor and full IDE. It supports IntelliSense code completion, building your code, and debugging your app.

It is built using web technologies (TypeScript in particular) and runs in a standalone web browser based app hosting environment. However, it is much quicker than similar Electron desktop apps, such as Atom or Slack. The same engine is used in the Azure web interface for editing code there.

To deal with huge data files, it is better to stick to a native text editor, for example, Notepad++ (on Windows) or Sublime Text.