Japanese placeholder text fills CJK layouts with realistic-looking content before real copy arrives. Japanese writes without spaces, mixes three scripts, and can break lines at almost any character, so it surfaces font and wrapping problems that Latin lorem ipsum never reveals.
How it works
The generator draws from three pools: hiragana syllables, katakana syllables, and a set of
common kanji. In mixed mode it interleaves them the way natural Japanese does, then groups
the characters into sentence-like runs terminated by the full-width Japanese full stop 。
and separated where appropriate by the full-width comma 、.
Because Japanese has no inter-word spaces, the natural unit of measure is the character, so
that option counts individual glyphs. An optional vertical preview applies the CSS
writing-mode: vertical-rl rule so you can see how the text reads top-to-bottom and
right-to-left, as in many traditional layouts.
Tips and notes
Use mixed-script mode for the most realistic test, since real Japanese rarely uses a single script. Watch for fonts that render some characters from a fallback typeface — a common sign of incomplete CJK coverage. Confirm that line breaks land sensibly and that punctuation is not orphaned at the start of a line. The output is filler for QA only; replace it with professionally translated copy before shipping.