Other than adnauseum which people have already mentioned, you might like User-Agent Switcher[1]. Not sure how useful it really is, but it is fun to see the diff

Other than adnauseum which people have already mentioned, you might like User-Agent Switcher[1]. Not sure how useful it really is, but it is fun to see the differences between how a website designed to be browser specific renders in a incorrect browser. [1] https://useragentswitcher.org/ https://useragentswitcher.org/