PHProxy

A PHProxy website is a basical proxy that offer you a entry field, where you enter the URL address of the website you would like to visit. Not only it hides your identity, it also remove all the client-side scripts (scripts that should run on your computer) but still allows HTTP cookies. Other defaults features offered by a PHProxy script are: it shows images and refers websites in HTTP headers, strips meta HTML tags, website’s title and it opens the entered URL in a new window.

Download PHProxy at its official development page:
PHProxy dev page
Phproxy was one of the first free proxy scripts available, that's why you see that so oftenly.