BitCannon 0.1.1 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 program lies within System Tools, more precisely File Managers.
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 actual developer of this free software for Mac is Stephen Smith.
From the developer:
BitCannon will import the archives from sites like Kickass and Demonoid and present them to you in a searchable, browseable format with a clean web interface. When ThePirateBay went down, most people had no choice but to switch to other sites despite the existence of publicly available backups. The main reason for this is that the backups were never meant to be usable on their own.
You may want to check out more software for Mac, such as WheresTheFreeSpace, which might be similar to BitCannon.