Any text editor will be able to save .rb files; they're just plain text files. Also, you didn't say which OS you're on, but assuming you're on Windows, notepad+

Any text editor will be able to save .rb files; they're just plain text files. Also, you didn't say which OS you're on, but assuming you're on Windows, notepad++ is a good free editor. http://notepad-plus-plus.org/ http://notepad-plus-plus.org/