SnapDMGv1.0.0 macOS 26+

.app to DMGin seconds.

SnapDMG turns an app bundle and a background image into a polished Mac disk image. Drop in your .app, add a JPG or PNG, and build a branded .dmg without touching the terminal.

Download View flow

Product walkthrough

Show the screen.Explain the flow.

SnapDMG is simple enough to explain in four moments: prepare the canvas, preview the artwork, build the DMG, and open the finished disk image.

01 / Setup

Set the canvas.

Pick the icon size, attach or paste a background image, and reuse one of the five recent assets when the same brand file comes back.

128 px iconsPaste imageRecent 5

02 / Preview

Preview the disk.

Attach a JPG or PNG and check the DMG window before export. 1080 x 700 is the recommended canvas when you want the artwork to stay crisp.

Live preview1080 x 700Brand image

03 / Build

Build the DMG.

Press Build DMG and SnapDMG creates a temporary disk, mounts it, applies the layout, and packages the final image automatically.

Temporary DMGAuto layoutNo terminal

04 / Result

Ship the DMG.

Open the result as a polished macOS disk image: your app, the Applications shortcut, and the branded background in place.

Final diskApplications shortcutReady to share

Version History

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