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The most efficient way to remember the meaning and writing of Japanese characters.


Remembering the Kanji

Use your imaginative memory to remember thousands complex Japanese characters, with Remembering the Kanji by James W. Heisig.

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Try the sample chapter (includes 294 kanji).
Both the 5th and 6th editions are supported!

Review, Share and Improve!

See your progress Visualize your progress as stacks of flashcards. Reviews are automatically scheduled based on your past results.

Review the kanji Review the kanji online. Repeat more of the difficult characters, and less of those that you know well.

Share mnemonics Feeling stuck? Share stories with fellow learners. Find help and encouragement on the community forums!


New : Keyboard shortcut for "Skip flashcard".2 June 2015
UPDATE Bugfix! The shortcut was only working after flipping the card. It now works before you flip the card, which makes a lot more sense :) (so eg, if you draw a blank on a keyword, you can skip the card without seeing the kanji, to work on it later).

There is a now a keyboard shortcut for the "Skip flashcard" feature previously available in the flashcard menu (the drop down that is available by clicking in the top right of the flashcard). The shortcuts are K and , (decimal point on the numeric keypad), also documented in the Help window.

The "Skip flashcard" shortcut can be handy if you like to whittle down the due cards by going through all the easy answers first, and then working on the difficult characters in a second pass. Thanks to Joe for the suggestion!
New : On / Kun example words on SRS flashcards.27 May 2015
The Spaced Repetition flashcards can now display an example On and Kun readings. The readings are shown as part of an existing word, rather than isolated. On readings are written in katakana, and Kun readings in hiragana. The reading for the kanji is highlighted in red in the full word pronunciation.

This feature was previously found in the "Custom Review" option but is now available as an option in the Flashcard Settings page. You may want to enable it once you have completed RTK, so you can get more out of the SRS reviews, and leave it out when you just started the RTK method so you can focus better on the kanji writing. In the latter case keep in mind you can always do some (non SRS) review sessions with vocabulary in the Custom Review page.

For upcoming updates, I am considering a significant change to the SRS that could streamline reviews and reduce the amount of due cards. The idea is pretty simple: instead of sending failed reviews back to the red pile, there would be the option to "demote" a card to a lower box, and also set its next review interval to a small amount, eg. ~ 3 days.

If the next review fails, the card would eventually fall back to the red pile. A card in box 1 or 2 would likely fall back to the red pile, but a card that already has 4+ successful reviews would not return to the "failed" pile straightaway. Instead it would come back for review within a few days. Upon succesful review it would be rescheduled based on the lower box it was moved to, so for example instead of 6 months it might come back in a month. Still this would save several reviews trying to move up the card again.

Any input would be appreciated. Let me know what you think!
Soon: On / Kun examples words in SRS flashcards18 May 2015
I am working on adding the On / Kun example words that are currently available in Custom Review, to the Spaced Repetition flashcards.

Thus when you have completed RTK you may want to enable this option so you can start associating characters to their readings,, and potentially note down some vocabulary as well.
Forum link.13 May 2015
The community forum link is back. You can access the forum from the "More" dropdown.

Small QoL tweak for story editing.7 May 2015
The error message displayed when saving a story that is too long now displays the count of characters that are over the limit (for example, "Story is too long (512 characters maximum, 23 over the limit)"). This should make it easier to whittle down a long story or text imported from other sources. Thanks to ralfkl for the suggestion!

And wow... Kanji Koohii (previously "Reviewing the Kanji") will be ten years old this August ! That is rather ancient by Internet standards =)

On a personal level, I am awaiting surgery (septoplasty) in July, which should help me breathe properly through the nose! I feel like this has a big impact on my sleep right now, and my general energy and motivation levels. Things got worse about a year ago when I started waking up regularly with a headache and a heavy head that lasted the whole day. Thankfully with nasal strips those headaches are gone. Now I just have to slog through the mornings till surgery. >_>

And as always, thank you for the support! There have been generous donations in March, more than usual thanks to a donation run from Sebastian.

...more in the news archive.