TonePerfect for Japanese
Practice any Japanese text
Paste a word, a line from a page, or the sentence you just read. Say it once and the engine scores every word and every sound — free, in your browser.
- Any Japanese text up to 120 characters
- A score per word and per sound, with the weakest one named
- No account — your browser records, our engine listens
Prefer a guided test? Take the 5-word Japanese test·All about Japanese pronunciation
Or try one of these
Enter some text, then record
How it works
- 1
Paste your text
A word, a phrase or a sentence in Japanese — typed, pasted, or sent here by the Chrome extension from any page.
- 2
Say it once
Tap the mic and read it aloud. Your browser records; the scoring engine listens in seconds.
- 3
See every sound
Each word and each sound comes back with a score out of 100, and the weakest sound is named so you know what to fix.
How the scores work: every mora in the word is scored out of 100, you see all of them, and they are ranked weakest-first so you know what to drill. What we don’t do is turn them into a JLPT level, or tell you which sound you produced instead of the target — the engine returns scores, not a transcript.
The sounds that decide your accent
The r-flap: ら・り・る・れ・ろ
Tap the tongue once, quickly, against the ridge behind the upper teeth — between an English l and r, close to the quick d in American "water". Never roll it, never curl the tongue back.
つ (tsu)
A quick t that melts straight into "su" — the "ts" of "cats" at the START of a beat. Don't drop the t and don't say "su".
ふ (fu)
Blow air softly between almost-closed lips, like gently blowing out a candle. NOT an English f — the teeth never touch the lip.
Long vowels: おう・おお・ええ・いい
A long vowel is the same vowel held for one extra full beat — がっこう is ga-k-ko-o, four beats. Keep the vowel pure while you hold it; don't let お drift toward "ou".
Small っ (the held beat)
A held, silent beat: get your mouth ready for the NEXT consonant and hold it closed for one full beat — がっこう has a real beat of silence in the middle. For す/し it is a held hiss instead.
ん (the standalone n)
A full beat of nasal hum on its own. Before b, p or m it sounds like "m"; before k or g like "ng"; elsewhere like "n". Whatever the color, give it its whole beat.
Scores rank your own sounds against each other so you know what to drill first. They are not an accuracy certificate and not an exam grade.
Questions
Is this free?+
Yes. You get a handful of free takes a day with no account. The TonePerfect app has unlimited practice with thousands of Japanese words and sentences.
What can I paste?+
Any Japanese text up to 120 characters — a single word, a phrase, or a full sentence. Text in another script is refused before recording so you never pay a take for a wrong paste.
How is the score calculated?+
The engine aligns your recording with the reference and scores each word and each sound from 0 to 100. Scores rank your own sounds against each other so you know what to drill first; they are not an accuracy certificate or an exam grade.
Can I practice text from other websites?+
Yes — paste it here, or install the Japanese AI Pronunciation Trainer Chrome extension: select text on any page, right-click, and it opens on this page ready to record.
What happens to my recording?+
It is sent to our scoring engine and kept, with the reference text, to improve the engine. Recordings are never published or shared.
Practice Japanese every day
The app drills the sounds this test flags, with thousands of words and instant feedback on every take.