Free Proxy sites are lifesaver when we try to access useful websites and found it blocked by our ISP, government, school, college WiFi, etc. Usually if you try to access video sharing, gaming website, social networks from your college or school’s WiFi, you will found it blocked. Many times, even website owner himself blocks his website on your region, this is very painful moment.
If you still want to access those blocked websites, Proxy websites is the only hope. (Yeah, you can use VPN but most of them are not free).