MAC to UYVY Converter

Change MAC format to UYVY — quick online tool

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Server-Side Engine

Conversion runs entirely in the cloud. Even complex MAC data is processed on powerful servers, keeping your device responsive and fast.

Quality Preserved

The converter extracts the best visual data from your MAC source. The resulting UYVY output maintains the quality your original data supports.

Browser-Based Tool

No downloads or installations needed — open the converter in your browser and convert MAC to UYVY instantly from anywhere.

How to convert MAC to UYVY

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose uyvy or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your uyvy file right afterwards

About formats

MAC (MacPaint) is a monochrome bitmap image format created by Bill Atkinson at Apple Computer and released alongside the original Macintosh on January 24, 1984. MacPaint was bundled with every Macintosh and became the first widely used painting application on a personal computer with a graphical user interface. MAC files store 1-bit (black and white) images at a fixed resolution of 576x720 pixels — matching the printable area of the original ImageWriter dot-matrix printer at 72 dpi — using PackBits run-length encoding compression. The file structure consists of a 512-byte header (largely unused, originally reserved for application data), followed by the compressed bitmap data organized as 720 rows of 72 bytes each (576 pixels per row, 8 pixels per byte). The PackBits scheme alternates between literal byte runs and repeated-byte runs, providing efficient compression for the large solid areas typical of black-and-white illustrations while imposing minimal computational overhead on the Macintosh's 7.8 MHz Motorola 68000 processor. One advantage is the format's historical significance — MacPaint and its file format helped establish the visual language of desktop computing, and the artwork created with it by early Macintosh users, including Susan Kare's iconic interface designs and fonts, represents a foundational chapter in computer graphics history. The format's extreme simplicity is another practical strength: MAC files can be decoded with trivial code, and the format is supported by ImageMagick, GIMP, XnView, and other modern image tools.
Developer: Apple Computer
Initial release: January 24, 1984
UYVY is a packed pixel format for storing images and video frames in YUV 4:2:2 chroma-subsampled color space, with the UYVY designation indicating the byte ordering within each 4-byte macropixel: U (Cb), Y0, V (Cr), Y1. Each macropixel encodes two horizontal pixels sharing a single pair of chrominance samples (U and V) but retaining individual luminance values (Y0 and Y1), achieving 2:1 horizontal chroma subsampling that reduces data size by 33% compared to full 4:4:4 YUV while maintaining full luminance resolution. The UYVY ordering is specified as a FOURCC code in Microsoft's Video for Windows and DirectShow frameworks, and is commonly used in professional video capture cards, broadcast equipment, and video processing pipelines. UYVY raw files contain no header — the pixel data is a flat sequence of U,Y,V,Y byte quadruplets, requiring external specification of image dimensions. The 4:2:2 subsampling exploits the human visual system's lower spatial resolution for color compared to brightness: the eye notices luminance detail at much higher spatial frequencies than chrominance detail, so sharing color samples between adjacent pixels produces no visible quality loss in practice. One advantage is broadcast-standard compatibility: UYVY's 4:2:2 sampling matches the chrominance structure used in professional video standards (ITU-R BT.601, SDI), making it the natural format for video capture hardware and frame-accurate processing. The format's efficient memory layout is another strength — the packed byte arrangement enables fast DMA transfers between capture hardware and system memory. UYVY data is handled by FFmpeg, ImageMagick, and professional video capture/editing software.
Developer: ITU-T / Microsoft
Initial release: 1982

Frequently Asked Questions

Why convert MAC to UYVY?

MAC requires niche software to open. Converting to UYVY lets you share and view your MacPaint images on virtually any platform.

What programs open UYVY?

Any modern image viewer opens UYVY — Windows Photos, macOS Preview, GIMP, Photoshop, and web browsers all support it.

Does this work on mobile devices?

Yes — the converter runs in any web browser, so it works on phones, tablets, laptops, and desktops regardless of operating system.

Is the output quality comparable?

The conversion extracts the best possible quality from your MAC data. The UYVY output reflects the format's capabilities accurately.

Can I convert multiple MAC images at once?

Yes — upload several MAC images in one session and convert them all to UYVY simultaneously. Batch processing saves significant time.

What is the MAC format?

MAC is used in classic Macintosh computing. It stores classic Mac artwork and pixel art archives — converting to UYVY makes this data universally accessible.