DMG Designer for macOS

Design the window
that says “drag to install.”

When you download a Mac app, a window opens asking you to drag its icon into Applications. Sleeve is the design tool for that window — arrange the icons, set a background, add arrows and stickers, then ship a signed .dmg that looks like you meant it.

Download for MacSee how it works

Free to design · One-time license · Builds forever

Sleeve designing a DMG install window
Why Sleeve

Everything the .dmg deserves

The window that opens when someone mounts your disk image is the first thing they see. Sleeve gives it the attention it never got.

A pixel-perfect Finder preview

What you design is exactly what opens. Sleeve renders the real Finder window: icon spacing, label position, background. No surprises when someone mounts your image.

Resizable windowAdjustable icon sizeToggle grid snap

Drag, snap, done

Position your app and the Applications alias on a snapping grid. Nudge to the pixel, or let Sleeve align it for you.

X 280 · Y 266

Stickers & markers

Hand-drawn arrows, geometric guides, motion paths, and “drag here” labels: the cues that make installs obvious.

Retina backgrounds

Drop in any artwork and export crisp 1×, 2× and 3× backgrounds. Toggle the volume name and tagline right on the canvas.

Signed & checksummed

Code-sign with your Developer ID, add a SHA-256 checksum, and internet-enable the image, all in one Build.

Three moves

From .app to .dmg

1

Add your app

Drag in your .app and Sleeve reads its icon, pulls in the Applications alias and sizes the window.

2

Design the window

Set the background, icon size and labels. Drop arrows and stickers exactly where you want the eye to go.

3

Build the DMG

Pick your format, sign it, checksum it. One click and you have a ship-ready disk image with your name on it.

The workspace

The whole installer, on one canvas

Item, window, and output each get their own inspector, right beside the live preview. Nothing’s hidden behind a terminal flag.

Design exactly what they'll see

Design exactly what they'll see

Lay out the whole window on a live canvas. It opens just the way you made it.

Ship it in one click

Ship it in one click

Turn your design into a signed disk image, ready to share — no terminal.

Make it beautiful

Make it beautiful

Retina backgrounds, your real app icons, and a drag-here arrow placed just right.

Ship an installer
people screenshot.

Download Sleeve, design your first DMG in a few minutes, and only buy a license when you ship.

Download for Mac
macOS 14+ · Apple Silicon & Intel · Notarized