RJ TextEd is described as 'full featured text and source editor with Unicode support, syntax highlighting and code folding' and is an app in the Development category. There are more than 100 alternatives to RJ TextEd for a variety of platforms, including Windows, Mac, Linux, BSD and Chrome OS. The best alternative is Visual Studio Code, which is free. Other great apps like RJ TextEd are Notepad++ (Free, Open Source), Sublime Text (Free Personal), Vim (Free, Open Source) and VSCodium (Free, Open Source).
VS Code is more than just a code editor, it provides the tools and extensions to compile, debug, compare, refactor, and even manage code repositories all within a highly-customised development environment.
GNU nano is a small and friendly text editor. Besides basic text editing, nano offers many extra features like an interactive search and replace, go to line and column number, auto-indentation, feature toggles, internationalization support, and filename tab completion.