Opera Mini was first released in 2005 as a web browser for mobile phones, with the ability to load full websites by sending most of the work to an external server. It was a massive hit, but it started to fade out of relevance once smartphones entered mainstream use.
Opera
This was the shit back in its hey day. It was a niche time where we could use it to punch through the school’s web filters that weren’t prepared for BYOD, because IT wasn’t prepared for little shits like me who could figure out a way onto their hidden network :D