Geany is very lightweight thanks to the smaller offering of features.

Geany is a cross platform editor, very similar to Notepad++ in Windows.

It is a real app and not another frankenstein web/electron app.

For example, there is an easy way to change the font and theme in the View menu. No need to search through several syntax styles like in Notepad++ just to be able to change the used font.

Which usually means it will remain free of charge.

Press F5 and code will run without the need to switch between windows.

This software respects your freedom.

It exists at PortableApps.com.

Geany has a built-in plugin manager which can be used to install plugins and add new powerful features to the editor.

In Geany you technically search once for a whole search query, unlike Gedit, where once you start typing, the file is searched for in accordance with each substring of what you're typing, all the while leading to terribly annoying lag.

Hence it is capable of showing the methods and inner classes of, e.g., a Java source file.