What source image size works best?
A square source image at 1024 x 1024 or larger is the safest starting point. It gives the bigger exports enough detail and keeps the smaller outputs cleaner when the browser scales them down.
FAQ
App icon generator FAQ
These are the practical questions that come up most often when people are preparing icon packs: source size, transparency, adaptive behavior, and what the exported PNGs do or do not replace.
Should I use a transparent or solid background?
Use a transparent background when the artwork already has its own defined shape and spacing. Use a solid background when the icon is meant to feel like a fixed tile or when the design depends on a colored backdrop to read clearly.
Does the generator upload my image anywhere?
No. The current workflow is client-side. Your file is read in the browser, the exports are generated locally, and the downloads are prepared without a server upload step.
Does it create Android adaptive icon resources?
No. The tool creates flat PNG outputs only. That is useful for design handoff, quick asset prep, and legacy launcher sizes, but adaptive icons still need their project-level foreground and background resources.
Does it create an iOS AppIconSet bundle?
No. It exports the PNG size set, not the full Xcode asset bundle. You still need to place those files into the iOS asset catalog structure used by your project.
Why does the PWA pack include both any and maskable files?
Because they serve different manifest use cases. The any files are general-purpose icons, while the maskable variants are more suitable when the installed app surface may crop or shape the icon area differently.
What if the icon looks cramped after export?
Increase the safe padding and try again. Cramped icons usually come from edge-to-edge artwork, not from the export step itself. A small amount of breathing room often fixes the problem faster than redesigning the entire mark.
Does this tool create a favicon .ico file?
No. The favicon pack currently exports PNG sizes only. If your stack still requires a bundled .ico file, use these PNGs as the source set and convert them in a later step.