Nightcode 0.4.7 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The actual developer of this free Mac application is Public Domain. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The program lies within Developer Tools, more precisely IDE.
From the developer:
Nightcode is a simple IDE for Clojure projects targeting the command line, the desktop, and the web. It's a standalone jar file that will run anywhere without being installed. Whether you choose to make a Clojure, ClojureScript, or Java project, Nightcode will use its built-in copy of Leiningen to build and run your code.
You may want to check out more software for Mac, such as HexDecBin, Objective Basic or Pleinpot, which might be similar to Nightcode.