Japanese is phonetic, unlike English. In Japanese spelling is phonetic and pronunciation is consistent. Words sound like they look and look like they sound. Even someone who’s never studied Japanese before could read a text written in romaji and be understood without trouble (unlike someone studying French, for example).
Nit, Japanese has two phonetic alphabets. But, largely Japanese is not phonetic in written language, as they also have a logographic set which makes up a large portion of most texts.