HyperDither

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 [email protected] • If you like HyperDither, please consider leaving an App Store review or rating. Every review counts and helps indie developers like ourselves. :)