• NEW: Native Apple Silicon support for blistering speed on new-generation Apple Macs
• Dark mode support
• EXR output
• Completely linear floating point image processing
• Raw image conversion optimized to maximize resolution
• Demosaicing algorithm and image adjustments specifically tailored for monochrome
• Touch Bar support
• macOS Big Sur and Retina 5K display compatible

AccuRaw Monochrome is a raw image editor and developer specifically for creating monochrome images. 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 cameras. A full list of supported cameras is on the product web site.

AccuRaw Features
• Optimized for creating monochrome images; AccuRaw Monochrome's custom demosaicing algorithm delivers better tonality and better artifact control that conventional color algorithms.
• Optimized to maximize image resolution.
• In addition to conventional cameras, AccuRaw Monochrome also provides for modified cameras, e.g., cameras modified for IR or UV operation, or by the removal of the sensor's Bayer array.
• Non-clipping workflow - Accuraw EXR has a highly linear floating point processing engine that treats EXR as a first-class citizen. You can easily recover even heavily blown highlights in downstream processing apps.
• Fits with your workflow. AccuRaw doesn't try to take over your workflow. It just fits in. There are no catalogs to worry about; your files stay right where they are, and AccuRaw never touches them. AccuRaw just automatically remembers your edits. A powerful system of presets and batch processing make work efficient, and you can output to any of JPEG, TIFF or DNG for maximum compatibility with your choice of post processing and digital asset management tools.
• Integration with apps such as Lightroom, Photoshop and Aperture

** Note: (a) AccuRaw monochrome only converts to monochrome, and (b) AccuRaw Monochrome doesn't do noise reduction or lens corrections - the image you get is the image your camera saw.

System Requirements:

Raw conversion requires very substantial amounts of processing power and memory. While AccuRaw Monochrome will run on laptops, performance is optimized for desktop systems. We strongly recommend the following minimum system specifications:
• OS X 10.9 (Lion) or later
• 4 GB system memory minimum, 8GB recommended
• 128 MB graphics memory minimum, 512 MB graphics memory recommended

What’s New

Version 3.2.0

• Improved highlight recovery
• Bug fixes
• New camera support: Canon EOS M50 Mark II, Fujifilm GFX 100S, Fujifilm GFX 50S II, Fujifilm X-E3, Fujifilm X-E4, Fujifilm X-S10, Leica SL2-S, Leica Q2 Monocrom, Nikon Z fc, Olympus OM-D E-M5 III, Panasonic Lumix DC-S5, Pentax K-3 Mark III, Sigma fp L, Sony Alpha 1 (ILCE-1), Sony A7R Mark IV (ILCE-7RM4), Sony ZV-1, Zeiss ZX1

Ratings and Reviews

4.3 out of 5
3 Ratings

3 Ratings


Good App, but......

It does a very good job of converting color raw images to monochrome with color and infrared cameras. Compared to my former workflow of Lightroom to Topaz Studio for monochrome conversion, there is more tonality with the Accurraw Monochrome images. It is not an amazing difference but it is definately visibly superior. So why the 4 star rating? Cost-For the price of the app I would expect an amazing app and in my opinion it is just not there. The second downgrade for me is the lack of support for the Pentax 645Z which does produce amazing converted monochrome images with its sensor. Finally the user manual is not very in depth and there are no tutorials to help get you started. So I would definately recommenc taking advantage of the free-trial period to see if it is worth the cost for you.

Developer Response ,

Hi, thanks for the review. We're glad to see that you're enjoying the tonality that AccuRaw Monochome provides. As regards the Pentax 645Z, no problem, we'll include it into our next release - that should be out by the end of August, hopefully a bit sooner.

Jofte ,

best monochrome raw converter on any platform

This app bests all other raw converters in the quality of its results. This includes latest versions of Capture One, DXO, Lightroom, Iridient Developer, Silkypix and others. Very very highly recommended for large prints where this quality difference really counts.

RMLimoDriver68 ,

Continually Crashes

It’s a great app when it works. It’s not very stable and crashes everytime I use it despite keeping everything up to date and sending crash reports to Apple over the past two years.

Developer Response ,

Hi. We're sorry to hear that you're having difficulty with the app. We'd like to invite you to contact our support desk via the app help function. We'd be glad to try to help.

App Privacy

The developer, Alexander McGuffog, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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