Browsh is a lot different from those browsers. It uses Firefox to load the page, then pixelates the background using UTF-8 half-blocks and converts all of the text to monospaced paragraphs.
It therefore requires Firefox and a true-color terminal (which is a lot for a text browser) but what it does with that is very cool.
Here's my website as seen in Browsh:
|Main page||An article|
Browsh can, inexplicably, render videos and WebGL, albeit they're pixelated and audio only sometimes works.
The intended use is for people who have low bandwidth, but who have access to a Linux server in a higher-bandwidth area. Browsh provides a great browsing experience at higher speeds by simply sending a pre-rendered page fetched over a faster network.
Personally, I just think it's fun to use. Go get it for Linux or Mac at Brow.sh.