Japanese presents challenges that European languages simply do not have: three writing systems used together in normal text, no spaces between words, and a layered politeness system that goes well beyond a simple formal/informal choice. A WordPress site translated into Japanese without attention to these specifics can be technically accurate and still read as unnatural or, worse, inappropriately casual for a business context.
Three Writing Systems in One Sentence
Japanese text normally mixes kanji (characters borrowed from Chinese, used for most nouns and verb stems), hiragana (a phonetic script used for grammatical elements) and katakana (a phonetic script mainly used for foreign loanwords and brand names). A translated page needs correct, natural use of all three; overusing katakana where kanji would be more natural, or vice versa, is a common tell of lower-quality machine translation that reads oddly to native speakers even when technically comprehensible.
Keigo: Japanese Levels of Politeness
Japanese has a formal politeness system called keigo, with distinct levels for different business and social contexts, considerably more granular than the simple formal/informal distinction found in French, German or Spanish. Most business websites should use a consistent, moderately formal register (teineigo) throughout, since deeper honorific forms are typically reserved for specific spoken business etiquette rather than general web content, and getting this register consistently right across a site matters more for perceived professionalism than in most other languages.
No Spaces, Different Text Layout Behavior
Japanese text does not use spaces between words, which changes how line breaks and text wrapping behave compared to space-separated languages. Layouts designed and tested only against English or other space-separated languages can wrap Japanese text in visually awkward ways, and CSS line-break and word-break properties often need Japanese-specific handling to render cleanly.
Checklist for Japanese Translation Quality
- Politeness level (keigo register) is consistent across the entire site, typically teineigo for general business content.
- Kanji, hiragana and katakana usage reads naturally rather than defaulting to katakana for terms that would normally use kanji.
- Layout and line-wrapping are tested against actual Japanese text, not assumed from how the English version wraps.
- Brand and product names are checked for whether they should stay in Latin script or be transliterated into katakana, a decision that varies by brand.
How GPTranslate Handles Japanese Translation
GPTranslate translates into natural, appropriately formal Japanese by default and preserves formatting and layout structure, working alongside the same AI Agent workflow used for every other supported language, so Japanese output benefits from the same underlying translation memory and consistency tooling.
Frequently Asked Questions
Should product names be translated into Japanese or kept in Latin script?
This is a brand decision rather than a translation rule; many international brands keep their name in Latin script while translating everything around it, while others transliterate into katakana for better recognition and pronunciation by Japanese audiences.
Is a single politeness level appropriate for an entire site?
For most business websites, yes; a consistent, moderately formal register across the whole site is more natural than mixing politeness levels between pages.
Conclusion
Japanese translation quality depends on more than accurate word choice: consistent politeness level, natural use of the three writing systems, and layout tested against real Japanese text all affect whether a translated site reads as professionally localized. These are worth checking specifically, since they are exactly the details a purely literal translation pass tends to miss.