If you're on a strictly locked-down school computer where you can't install any software or extensions, a web-based proxy service is your best bet. CroxyProxy is widely cited as the top recommendation for this in 2026.
This is a very simple trick that costs nothing and takes just a few seconds to test. pinterest unblocked link at school verified
: While convenient, free browser extensions may not always be the most secure option for logging into sensitive accounts. Use them primarily for browsing and inspiration. If you're on a strictly locked-down school computer