Paid ReaConverter Alternatives for Mac
ReaConverter is not available for Mac but there are plenty of alternatives that runs on macOS with similar functionality. The most popular Mac alternative is 
Caesium Image Compressor, which is both free and Open Source. If that doesn't suit you, our users have ranked 32 alternatives to ReaConverter and 12 are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to ReaConverter are 
XnConvert (Free Personal), 
Filestar (Free Personal), 
Phatch (Free, Open Source) and 
Pixillion (Free Personal).
- Photo Batch will help you process all your images at once.
- Graphic Converter for Mac and Windows, can converts image formats BMP, JPG, GIF, ICO, PNG, TIF, TIFF, JPEG, WMF, EMF, PSP, PSD, PCM, SVG, RAW and more.
- A powerful photo manipulation program for Windows and Mac that makes it easy to add date/time stamps, resize, convert, watermark, touch-up, apply special effects, and rename hundreds of photos in a single operation!.
- Squash is a simple, powerful app for compressing and converting images for the web and more.