The 1.2 version of WizRegEx for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The software lies within Developer Tools, more precisely Webmaster Tools.
The actual developer of this free Mac application is Subhash Chandran. 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:
Wiz RegEx is a simple regular expression (RegEx) testing application. The program can display a group index for an easier coding experience when working with RegEx groups. The utility supports matching options, such as case-insensitive matches. In addition, it can capture groups.
You may want to check out more software for Mac, such as Adobe Shockwave, Image2Web or Vista Editor, which might be related to WizRegEx.