– If Pinterest is required for a class project (art, design, research, etc.), ask for it to be temporarily whitelisted.
On a properly managed school Chromebook, there is no reliable, safe, and lasting method to unblock Pinterest without administrative credentials. pinterest unblock school chromebook
Your Chromebook asks a DNS server "Where is Pinterest?" The school DNS says "Blocked." You can switch to Google’s public DNS. – If Pinterest is required for a class