CodeBlue 4 4.1.0 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 software for Mac is Tom Bluewater.
The program lies within Developer Tools, more precisely Webmaster Tools. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software.
From the developer:
CodeBlue 4 offers a centralized systems to which you can go back and find an important chunk of code you have written in the past. The utility can classify code snippets into different groups. You can choose one of 224 icons to characterize a group. Also, you can create a list of tags to syntax-highlight for a given group. You have the ability to highlight the title of an important code snippet with three different levels of importance.
You may want to check out more Mac applications, such as Url Extractor X, WebPics or Browsealoud, which might be related to CodeBlue 4.