Free Utility Kit flagship quickstart

# Browser Extension Store Mockup Kit

Extension listing frames, feature tiles, permission cards, and install-preview scenes. Built for product launches, app listings, screenshot frames, with PNG, SVG, flagship contact sheet files, visible use-case previews, direct ZIP access, and editable source material where the format supports it.

## Product launches

Open the matching source file, replace placeholder copy, then export a preview before publishing.

## App listings

Open the matching source file, replace placeholder copy, then export a preview before publishing.

## Screenshot frames

Open the matching source file, replace placeholder copy, then export a preview before publishing.

## Landing pages

Open the matching source file, replace placeholder copy, then export a preview before publishing.