AI icon generators create icons and small symbols for apps, websites, and interfaces from a short text description. You describe the concept and style you want, and the AI produces matching icons, often as a consistent set with the same line weight and look. Tools like Recraft, Freepik AI, and AutoDraw handle everything from flat UI icons to app store icons.
App developers, web designers, and product teams use these to fill out an interface quickly or generate a custom app icon without a dedicated illustrator. The big advantage is consistency: a good generator keeps a whole set looking like it belongs together. Watch the output format, since icons usually need to scale cleanly, so tools that export vector or transparent files are far more useful than ones that only give you flat images.