App Icon Maker

App Icon Maker is a straightforward web tool that solves a specific, tedious task for app creators: generating the multitude of icon sizes required by different app stores. You upload one high-resolution image, and the tool automatically creates and packages all the necessary icon dimensions for iOS, Android, macOS, and Apple Watch. It handles the resizing and formatting, so you don't have to manually create dozens of files in Photoshop or Sketch.

The process is simple and fast. You drag and drop an image onto the site, and within seconds, you can download a ZIP file containing icons in all the standard sizes. The tool is completely free, requires no account, and works in any modern web browser. It's part of a larger suite of developer utilities called ToolyDesk, but its icon-making function stands alone as a dedicated, no-frills service.

This tool is most useful for indie developers, designers, and project managers who need to quickly prepare assets for app submission. Instead of getting bogged down in technical specifications for each platform, you can use App Icon Maker to get a production-ready set of icons from a single source file, saving significant time in the final stages of app development.