SlimRAW 1.9 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. We recommend checking the downloaded files with any free antivirus. This Mac application is a product of Mihail Moskov. SlimRAW for Mac relates to Audio & Video Tools.
From the developer:
slimRAW converts uncompressed CinemaDNG raw video to losslessly compressed CinemaDNG. The software saves storage space and reduces storage bandwidth requirements for CinemaDNG raw video production. slimRAW is available for Microsoft Windows and Apple OS X.