Download of AccuRaw 2.3 for Mac was on 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 application lies within Design & Photo Tools, more precisely Viewers & Editors. The following version: 1.0 is the most frequently downloaded one by the program users. The actual developer of this Mac application is Alexander McGuffog. The unique ID for this application's bundle is net.sourceforge.pcdtojpeg.accuraw.
From the developer:
AccuRaw is a raw image editor and developer that delivers unmatched control over how your images are processed. Raw file formats from most camera manufacturers are supported, for example Nikon NEF files, Canon CR2 files, Leica DNG files, etc. AccuRaw also provides state-of-the-art processing for Fuji X-Trans based camera such as the X-Pro 1, X-E1, and X100s. A full list of supported cameras is available here.
You may want to check out more software for Mac, such as AccuRaw Monochrome or AccuRaw EXR, which might be similar to AccuRaw.