Frameless is described as 'Dig responsive design? Hate fluid grids? Try a Frameless grid' and is an website in the Development category. There are more than 50 alternatives to Frameless, not only websites but also apps for a variety of platforms, including Self-Hosted solutions, Linux, Mac and Windows. The best alternative is Bootstrap, which is both free and Open Source. Other great sites and apps similar to Frameless are Materialize (Free, Open Source), Foundation (Free, Open Source), Purecss (Free, Open Source) and Tailwind CSS (Free, Open Source).
feh is an X11 image viewer aimed mostly at console users. Unlike most other viewers, it does not have a fancy GUI, but simply displays images. It is controlled via commandline arguments and configurable key/mouse actions.