Yomu

Read Japanese; your reading clears your reviews.

A dictionary and spaced repetition built into the book. Tap a word to learn it; every page you read after that is the review.

THE READER

A page, and almost nothing else.

Vertical or horizontal, three furigana modes. At rest there is the page, one hairline for how far in you are, and the way out.

はで。は。でたかとがぬ。

でもたでてただけはて。

はでてとをた。でとはとでなでただ。

吾輩は猫である · 夏目漱石p. 74 / ~218

REVIEWS

Most of your reviews happen while you read.

A word you carded turns up again forty pages on. That counts as the review; what the book did not bring back is a short queue.

吾輩はここで始めて人間というものを見た。しかも後で聞くとそれは書生という人間中で一番獰悪な種族であったそうだ。この書生というのは時々我々を捕えて煮て食うという話である。

書生, met again on p. 114counted as a review

書生

しょせい

a student boarding in someone’s house

the same word, on a day the book did not bring it back

Not taken on trust: Yomu spot-checks a few of its own credits with a quick question as you read, and takes back any that fail.

TODAY

Your words turn up in the morning’s news.

Short news pieces arrive through the day; when one uses a word you carded, Today shows it beside the headline, and the article is a page you can read.

in today’s news

警戒けいかい

vigilance; caution; being watchful

九州南部で線状降水帯 気象庁「記録的な大雨に警戒を」

carded yesterday · not asked yet · met once while reading

BOOKS

What can I read next?

Every band below is arithmetic you can open — how much of the page is kanji, how long the sentences run, how far past the common words the vocabulary reaches. Signed in, your own share of each book sits on its row: the words you have marked known, counted against the book, not a guess at a vocabulary size.

  • 子どものすきな神さま新美南吉Mostly kana1,116 characters · 172 distinct words
    How this is counted

    Very little kanji, and short sentences. Children's stories and graded readers look like this.

    • How much of the page is kanji15% of the script on the page · 23% of this band
    • How long the sentences run17 characters per sentence · 19% of this band
    • How late those kanji are taught1.8 on a 1–8 scale of school year, where 7 is the rest of the common list and 8 is outside it · 23% of this band
    • Kanji outside the common list0% of the distinct kanji · 12% of this band
    • How often the words are uncommon5% of the words the corpus ranked sit past the common bands, counting the middle bands as half · 23% of this band

    Its 42 different kanji, by when they are taught

    95%
    Taught in primary school — the 教育漢字.
    5%
    Taught later at school — the rest of 常用漢字.
    0%
    Not on the common list — name characters, and characters outside 常用漢字 altogether.

    Counted over the 42 different characters the book uses, each once — not over how often you meet them, so a character used once weighs the same as one used on every page. The five bars higher up count kanji two different ways: “How late those kanji are taught” counts every appearance, so the characters on every page weigh most, while “Kanji outside the common list” is the last figure in this chart, counted the same each-character-once way.

    Counted over 976 characters of Japanese script and 584 words as they appear on the page, of which 337 appear in the frequency list behind this. The rest are not counted rather than rare: the list only reaches so far.

    Tatoeba Japanese sentence export (tatoeba-jpn): 32980 lexemes over 2497247 counted words. Short, learner-contributed conversational sentences, largely translated from English. Not prose.

    Which kanji it uses was judged against a published list of 2,999 characters and the school year each one is taught in. “The common list” above is 常用漢字, the characters Japanese schooling covers; a character the list places outside those school years — a name character, or one it does not carry at all — counts as outside it. “How late those kanji are taught” counts every time a character appears, so the characters on every page weigh most; “Kanji outside the common list” counts each different character once, however often the book uses it.

  • イーダちゃんのお花ハンス・クリスチャン・アンデルセン Hans Christian AndersenMostly kana9,606 characters · 737 distinct words
    How this is counted

    Very little kanji, and short sentences. Children's stories and graded readers look like this.

    • How much of the page is kanji11% of the script on the page · 23% of this band
    • How long the sentences run28 characters per sentence · 19% of this band
    • How late those kanji are taught2.3 on a 1–8 scale of school year, where 7 is the rest of the common list and 8 is outside it · 23% of this band
    • Kanji outside the common list0% of the distinct kanji · 12% of this band
    • How often the words are uncommon6% of the words the corpus ranked sit past the common bands, counting the middle bands as half · 22% of this band

    Its 205 different kanji, by when they are taught

    89%
    Taught in primary school — the 教育漢字.
    11%
    Taught later at school — the rest of 常用漢字.
    0%
    Not on the common list — name characters, and characters outside 常用漢字 altogether.

    Counted over the 205 different characters the book uses, each once — not over how often you meet them, so a character used once weighs the same as one used on every page. The five bars higher up count kanji two different ways: “How late those kanji are taught” counts every appearance, so the characters on every page weigh most, while “Kanji outside the common list” is the last figure in this chart, counted the same each-character-once way.

    Counted over 8,566 characters of Japanese script and 4,956 words as they appear on the page, of which 2,850 appear in the frequency list behind this. The rest are not counted rather than rare: the list only reaches so far.

    Tatoeba Japanese sentence export (tatoeba-jpn): 32980 lexemes over 2497247 counted words. Short, learner-contributed conversational sentences, largely translated from English. Not prose.

    Which kanji it uses was judged against a published list of 2,999 characters and the school year each one is taught in. “The common list” above is 常用漢字, the characters Japanese schooling covers; a character the list places outside those school years — a name character, or one it does not carry at all — counts as outside it. “How late those kanji are taught” counts every time a character appears, so the characters on every page weigh most; “Kanji outside the common list” counts each different character once, however often the book uses it.

  • 赤ずきんちゃんグリム兄弟 Bruder GrimmMostly kana3,707 characters · 426 distinct words
    How this is counted

    Very little kanji, and short sentences. Children's stories and graded readers look like this.

    • How much of the page is kanji6% of the script on the page · 23% of this band
    • How long the sentences run29 characters per sentence · 19% of this band
    • How late those kanji are taught2.1 on a 1–8 scale of school year, where 7 is the rest of the common list and 8 is outside it · 23% of this band
    • Kanji outside the common list0% of the distinct kanji · 12% of this band
    • How often the words are uncommon8% of the words the corpus ranked sit past the common bands, counting the middle bands as half · 23% of this band

    Its 74 different kanji, by when they are taught

    91%
    Taught in primary school — the 教育漢字.
    10%
    Taught later at school — the rest of 常用漢字.
    0%
    Not on the common list — name characters, and characters outside 常用漢字 altogether.

    Counted over the 74 different characters the book uses, each once — not over how often you meet them, so a character used once weighs the same as one used on every page. The five bars higher up count kanji two different ways: “How late those kanji are taught” counts every appearance, so the characters on every page weigh most, while “Kanji outside the common list” is the last figure in this chart, counted the same each-character-once way.

    Counted over 3,279 characters of Japanese script and 1,833 words as they appear on the page, of which 1,084 appear in the frequency list behind this. The rest are not counted rather than rare: the list only reaches so far.

    Tatoeba Japanese sentence export (tatoeba-jpn): 32980 lexemes over 2497247 counted words. Short, learner-contributed conversational sentences, largely translated from English. Not prose.

    Which kanji it uses was judged against a published list of 2,999 characters and the school year each one is taught in. “The common list” above is 常用漢字, the characters Japanese schooling covers; a character the list places outside those school years — a name character, or one it does not carry at all — counts as outside it. “How late those kanji are taught” counts every time a character appears, so the characters on every page weigh most; “Kanji outside the common list” counts each different character once, however often the book uses it.

  • かいじん二十めんそう江戸川乱歩Mostly kana12,304 characters · 875 distinct words
    How this is counted

    Very little kanji, and short sentences. Children's stories and graded readers look like this.

    • How much of the page is kanji4% of the script on the page · 23% of this band
    • How long the sentences run25 characters per sentence · 19% of this band
    • How late those kanji are taught1 on a 1–8 scale of school year, where 7 is the rest of the common list and 8 is outside it · 23% of this band
    • Kanji outside the common list0% of the distinct kanji · 12% of this band
    • How often the words are uncommon12% of the words the corpus ranked sit past the common bands, counting the middle bands as half · 22% of this band

    Its 28 different kanji, by when they are taught

    100%
    Taught in primary school — the 教育漢字.
    0%
    Taught later at school — the rest of 常用漢字.
    0%
    Not on the common list — name characters, and characters outside 常用漢字 altogether.

    Counted over the 28 different characters the book uses, each once — not over how often you meet them, so a character used once weighs the same as one used on every page. The five bars higher up count kanji two different ways: “How late those kanji are taught” counts every appearance, so the characters on every page weigh most, while “Kanji outside the common list” is the last figure in this chart, counted the same each-character-once way.

    Counted over 11,099 characters of Japanese script and 5,838 words as they appear on the page, of which 3,217 appear in the frequency list behind this. The rest are not counted rather than rare: the list only reaches so far.

    Tatoeba Japanese sentence export (tatoeba-jpn): 32980 lexemes over 2497247 counted words. Short, learner-contributed conversational sentences, largely translated from English. Not prose.

    Which kanji it uses was judged against a published list of 2,999 characters and the school year each one is taught in. “The common list” above is 常用漢字, the characters Japanese schooling covers; a character the list places outside those school years — a name character, or one it does not carry at all — counts as outside it. “How late those kanji are taught” counts every time a character appears, so the characters on every page weigh most; “Kanji outside the common list” counts each different character once, however often the book uses it.

  • 三つのことばグリム GrimmMostly kana2,997 characters · 370 distinct words
    How this is counted

    Very little kanji, and short sentences. Children's stories and graded readers look like this.

    • How much of the page is kanji9% of the script on the page · 23% of this band
    • How long the sentences run32 characters per sentence · 19% of this band
    • How late those kanji are taught3.1 on a 1–8 scale of school year, where 7 is the rest of the common list and 8 is outside it · 23% of this band
    • Kanji outside the common list0% of the distinct kanji · 12% of this band
    • How often the words are uncommon6% of the words the corpus ranked sit past the common bands, counting the middle bands as half · 23% of this band

    Its 102 different kanji, by when they are taught

    88%
    Taught in primary school — the 教育漢字.
    12%
    Taught later at school — the rest of 常用漢字.
    0%
    Not on the common list — name characters, and characters outside 常用漢字 altogether.

    Counted over the 102 different characters the book uses, each once — not over how often you meet them, so a character used once weighs the same as one used on every page. The five bars higher up count kanji two different ways: “How late those kanji are taught” counts every appearance, so the characters on every page weigh most, while “Kanji outside the common list” is the last figure in this chart, counted the same each-character-once way.

    Counted over 2,724 characters of Japanese script and 1,576 words as they appear on the page, of which 879 appear in the frequency list behind this. The rest are not counted rather than rare: the list only reaches so far.

    Tatoeba Japanese sentence export (tatoeba-jpn): 32980 lexemes over 2497247 counted words. Short, learner-contributed conversational sentences, largely translated from English. Not prose.

    Which kanji it uses was judged against a published list of 2,999 characters and the school year each one is taught in. “The common list” above is 常用漢字, the characters Japanese schooling covers; a character the list places outside those school years — a name character, or one it does not carry at all — counts as outside it. “How late those kanji are taught” counts every time a character appears, so the characters on every page weigh most; “Kanji outside the common list” counts each different character once, however often the book uses it.

  • ペンとインキつぼハンス・クリスチャン・アンデルセン Hans Christian AndersenMostly kana2,957 characters · 379 distinct words
    How this is counted

    Very little kanji, and short sentences. Children's stories and graded readers look like this.

    • How much of the page is kanji14% of the script on the page · 23% of this band
    • How long the sentences run27 characters per sentence · 19% of this band
    • How late those kanji are taught2.5 on a 1–8 scale of school year, where 7 is the rest of the common list and 8 is outside it · 23% of this band
    • Kanji outside the common list1% of the distinct kanji · 12% of this band
    • How often the words are uncommon7% of the words the corpus ranked sit past the common bands, counting the middle bands as half · 23% of this band

    Its 127 different kanji, by when they are taught

    90%
    Taught in primary school — the 教育漢字.
    9%
    Taught later at school — the rest of 常用漢字.
    1%
    Not on the common list — name characters, and characters outside 常用漢字 altogether.

    Counted over the 127 different characters the book uses, each once — not over how often you meet them, so a character used once weighs the same as one used on every page. The five bars higher up count kanji two different ways: “How late those kanji are taught” counts every appearance, so the characters on every page weigh most, while “Kanji outside the common list” is the last figure in this chart, counted the same each-character-once way. The published list placed 99% of those 127 characters. The rest are counted as outside 常用漢字, which is what absence means in a complete list — so the smaller that figure, the more of this chart is the list's gaps rather than the book's.

    Counted over 2,599 characters of Japanese script and 1,539 words as they appear on the page, of which 906 appear in the frequency list behind this. The rest are not counted rather than rare: the list only reaches so far.

    Tatoeba Japanese sentence export (tatoeba-jpn): 32980 lexemes over 2497247 counted words. Short, learner-contributed conversational sentences, largely translated from English. Not prose.

    Which kanji it uses was judged against a published list of 2,999 characters and the school year each one is taught in. “The common list” above is 常用漢字, the characters Japanese schooling covers; a character the list places outside those school years — a name character, or one it does not carry at all — counts as outside it. “How late those kanji are taught” counts every time a character appears, so the characters on every page weigh most; “Kanji outside the common list” counts each different character once, however often the book uses it.

Sign in to see how much of each book you already know. Coverage is computed against your own known words, and no figure here describes anybody else.

BRING YOUR OWN

Your book, and the words you already know.

Drop in an EPUB or paste a chapter. Bring your vocabulary across from Anki, jpdb or WaniKani and what you already know comes with it, so nothing starts from zero.

Start reading in your browserfree · no card · one page to set your level, and you can skip it
Drop an EPUB or .txtparsed on the server · your file is not keptor paste a chapter

bring your words from

Anki
.apkg or .colpkg · interval, ease and history come with it
jpdb
reviews.json · intervals rebuilt from your review history
WaniKani
a read-only access token
a list
one word per line