Japanese to Romaji Converter
Paste any Japanese text, including kanji, and get romaji you can read right away. Runs fully in your browser, free, no signup.
About the romaji this tool produces
The converter reads your text with a morphological analyzer, the same kind of technology behind Japanese input software, so kanji get their dictionary reading in context rather than a one-size-fits-all guess. Particles come out the way they are pronounced: は becomes wa and へ becomes e.
The output is Hepburn-style romaji with long vowels written out (oo, uu), which is the easiest style to read aloud. Use it to pronounce song titles, tweets, or homework sentences, and treat readings of personal names with care, since names can be read several ways.
Keep going
Readings come from a dictionary, so rare names and unusual compounds can be read differently in context. Treat unfamiliar names with care.
Frequently asked questions
How does the tool know how to read each kanji?
It analyzes the whole sentence with an open-source dictionary and picks the reading that fits the context, the same approach Japanese input software uses. That is why 今日 comes out as kyou rather than a character-by-character guess.
What romaji style does it output?
Hepburn-style spelling with long vowels written out as double letters, like oo and uu. That style maps directly back to kana, which makes it the most useful one for learners.
Why does わたしは come out as watashi wa?
Because the particle は is pronounced wa, and the tool outputs pronunciation rather than spelling. The same happens with へ, which becomes e when used as a particle.
Are Japanese names converted correctly?
Common names usually are, but Japanese personal and place names can have several valid readings. Double-check any name that matters before you use it.
Is my text private?
Yes. The dictionary downloads to your browser once, and every conversion runs locally on your device. Nothing you paste is uploaded anywhere.