Happy #MARCHintosh! HyperDither is free for a limited time. Go and pixel some stuff!
HyperDither gives your photos the textured, stippled look of early desktop publishing and multimedia. Whether black-and-white, grayscale, or color, HyperDither delivers rich, velvety pixels you won't find in Photoshop.
HISTORY:
In the early 1980s, Bill Atkinson—creator of HyperCard, QuickDraw, and MacPaint—developed a brilliant technique for displaying tonal images on the original Macintosh's 1-bit screen. That algorithm became legendary among designers and classic Mac users, yet it remained buried in Apple's scanner software for years. In 2003, Bill personally shared the original algorithm with Tinrocket founder John Balestrieri, who implemented it in HyperDither and published the details so other developers could implement it.
FEATURES
• Classic 1-bit black and white dithering
• Grayscale and full-color modes
• Multiple legendary algorithms: Atkinson, Floyd-Steinberg, Stucki, and more
• Optimized and uniform color palette modes
• Resize, sharpen, and adjustment controls
• Indexed, 8-bit PNG export
SUPPORTS:
• macOS 11 (Big Sur) or later
• GPU acceleration with Metal 2 and Core Image
• Dark Mode support
From Tinrocket, award-winning creator of Waterlogue, Olli, and This.
KEEP UP WITH TINROCKET:
• Follow @Tinrocket on Instagram for the latest!
• We’re here to help: If you have a question or need assistance, you can always email us at support@tinrocket.com
• If you like HyperDither, please consider leaving an App Store review or rating. Every review counts and helps indie developers like ourselves. :)
This app hasn’t received enough ratings or reviews to display an overview.
Perfect
Chocolate and Tea
As someone who has had a Mac at home since the original 128k in 1984 and also used ThunderScan (which was where Bill’s algorithm was first used), i love this simple, well-designed app. For those not familiar with its output, the screen shot here on the app store is not the best example. Tinrocket’s website has a direct comparison between this and Photoshop’s diffusion dither.This app is useful for modern graphic artists either by combining its output with other layers in Photoshop (or other bitmap graphics programs that support layers) or preparing an image for print using this instead of a normal PostScript halftone. Be sure to play with the sharpen and contrast options (those were available in 1980s implementations, too) to chose the best dithering of a particular image.I only wish the developers would put a change log on either here or their website like used to be included in the “Read Me” file that was distributed with the program before it moved to the app store.
Amazing Tool For Dithering
edenwaith
Dithering with black and white or greyscale is one thing, but tackling color dithering and getting the colors to closely match with a limited palette is an entirely different beast. The first photo I tried with color dithering was amazingly close to the original, even when taken down to just 4 colors. Amazing work.
Developer Response
Thank you so much! I’m glad you noticed the color reduction quality; I worked very hard to find the right algorithms, ones that would feel ‘intentional’ rather than ‘mechanical.’ —John
Very basic
Skeletromp
The app appears to be using a decent enough dithering algorithm and the batch processing would be useful. Unfortunately the sharpen and contrast options are strict toggles and give very little room to customize the output making this app useless for my purposes. It would've been so easy to make these a couple of sliders that would really allow you to dial in what features of the source image you're trying to capture. That at a baseline would've made this purchase worth it to me. I would be completely thrilled if it offered multiple dithering algorithms to choose from, maybe even where you could specify your own noise pattern.
Almost perfect
sveinbjornp
... but I'd love a curves setting. So I can "massage" the outcome in real time.Otherwise, I love it. I use it a lot for a printed magazine in Iceland.
3.0:
• Color dithering
• Optimized and uniform color palettes
• Color dither presets
• Indexed, 8-bit PNG export
• Updated Tinrocket libraries
• Bug fixes and improvements
3.0.3:
• Fixed issue with index, 8-bit export
• Better error reporting when exporting
If you like HyperDither, please consider leaving an App Store review or rating—we’d appreciate it! Every review counts and helps indie developers like ourselves. :)
We’re here to help you, too. If you have a question or need assistance, you can always email us at support@tinrocket.com
Thanks again!
Version 3.0.2
The developer, Tinrocket, LLC, 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
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
