Mockstack, App Marketing Photo Builder

Saved locally

Edit design

tap to open

Screens

One design per store screenshot. Order sets the export numbering. Template files carry your designs, not screenshots, so next release starts styled.

Screenshot

PNG / JPG · higher resolution exports cleaner

Snapshots

No snapshots · click "Save snapshot" up top to start a set.

Saved states of the canvas. Useful when iterating across 5 to 10 screenshots for the same listing.

Templates

One-click compositions. Replace the placeholder copy with yours.

Output size

Phone frame

Device

Body color

Scale 75%

Position Y 55%

Values past 0 / 100 let the device bleed off the canvas.

Shadow 45

Rotation 0°

3D tilt

Flat

Hero

Fan L

Fan R

Custom

Yaw L / R 0°

Pitch U / D 0°

Background

Auto Matched from your screenshot

Color

A whisper of film grain over the background. Kills gradient banding on OLED screens.

Text

Position

Heading

Subheading

Localization

Font

Weight

Color

Heading size 120

Subheading scales automatically (~45% of heading). Heading size is set against the tallest canvas and scales with the export size, so one design holds at every size.

Align

Stickers

Click a sticker on the canvas to select; drag to reposition.

Watermark

Every export carries "screenshot by mockstack.io". Position and orientation are yours to set.

Position

Tiny attribution on exports. Helps us keep the tool free.

SAVED IN BROWSER CMD+Z UNDO · CMD+S EXPORT · RUNS LOCALLY

READY RUNS LOCALLY · YOUR SCREENSHOTS NEVER LEAVE THIS MACHINE

Mockstack screenshot editor