MAC is the MacPaint format from the original 1984 Macintosh, storing simple 1-bit black-and-white images at 576×720 — a piece of computing history.
MAC opens in GraphicConverter and ImageMagick; convert to PNG for modern viewing.
Share, post and embed pictures across sites and apps.
Work with the format in editors like Photoshop and GIMP.
Keep memories and assets in a widely-readable form.
| ✔ Strengths | ✖ Limitations |
|---|---|
| Purpose-built for its niche | No transparency support |
| Limited support — may need converting |
Remove the background from MAC images, upscale to 4K, or generate new visuals with SharkFoto AI.
MAC is the MacPaint format from the original 1984 Macintosh, storing simple 1-bit black-and-white images at 576×720 — a piece of computing history.
MAC opens in GraphicConverter and ImageMagick; convert to PNG for modern viewing.
MAC is optimised for its specific use rather than strictly lossless storage.
Use SharkFoto's free tools — upload your MAC file and convert it to a more convenient format in seconds. It's free, processed securely and never stored.
No — MAC doesn't store transparency; convert to PNG or WEBP if you need it.