Plan G is a free, open-source font designed by Russian type designer Ivan Gladkikh. It is a clean and simple sans-serif font with a modern aesthetic. Plan G offers a variety of weights and styles that allow for versatility in its use. The font is optimized for use in digital media and has perfect legibility on screen. Plan G has been praised for its clarity, readability, and versatility, making it an excellent choice for designers and developers looking for a free and reliable font for their projects.