Proxy
Type an address and choose how it opens. Everything happens in your browser — nothing is sent anywhere unless you set a backend.
Open mode
pick oneFrame
sandboxedNothing loaded
Type an address above with this mode selected and the page renders here.
Activity
Worth knowing
The first three modes all end up rendering the page inside an iframe. A site can refuse that by sending X-Frame-Options or a frame-ancestors policy, and when it does, no amount of client-side code gets around it — about:blank and blob windows are subject to exactly the same rule as the frame on this page.
Two things do get around it. A plain new tab, because that is a real navigation rather than an embed. Or a backend you run, because the page is then served from your own origin and the headers never reach the browser.