Pixelarticons by Gerrit Halfmann offers 486 open-source line pixel-art icons, each designed with a 24x24px grid in a single color. Perfect for adding a retro touch to your projects, these icons are available for free. The Pro version includes 1,944 icons in four different styles, providing extensive options for various design needs. These icons are ideal for unconventional user interfaces and creative designs, ensuring a distinct and minimalist aesthetic.