Sources of mosaic web browser are available at github. Mosaic is one of the first graphical browsers, and the first one to support images in html documents. It is often considered as the grandparent of modern web browsers.

Available sources compile fine on linux. This allowed me to install mosaic and browse the web for some time. Actually, I did not browse for a long time because most websites, including the most accessible ones display badly with pristine mosaic. But that was still fun.

this blog with mosaic

google with mosaic

wikipedia with mosaic