ZeroBrane Studio is described as 'lightweight Lua IDE with code completion, syntax highlighting, live coding, code analyzer, and debugging support for Lua 5.1, Lua 5.2, Lua 5.3, LuaJIT, and other Lua engines' and is an app in the Development category. There are three alternatives to ZeroBrane Studio for a variety of platforms, including Mac, Windows, Xfce, PortableApps.com and BSD. The best alternative is Geany, which is both free and Open Source. Other great apps like ZeroBrane Studio are Hacker Pad (Paid) and Decoda (Free, Open Source).
Hacker Pad is a convenient scratch pad that allows everyone, especially developer, to quickly jot down ideas and snippets. This comes from the need of my colleagues who struggle with how to quickly write down notes in a convenient way.