Download of TransparentWebView 1.2 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
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. The software lies within Internet & Network Tools, more precisely Browsers. This free Mac app was originally produced by Dirk van Oosterbosch.
From the developer:
The TransparentWebView is an easy-to-use open source transparent web browser for Mac OS X. That means that if the visited web page is without a background color, or the background color is set to transparent, the complete browser window will be see-through.
You may want to check out more software for Mac, such as ARDT Browser, ryc-server or JanusVR, which might be similar to TransparentWebView.