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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.

Get it at

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!


"Reviewing the Kanji" is now "Kanji Koohii" !6 March 2015
The website just got a little makeover, hope you like it ! Along with the refresh of the layout and theme, the website's identity is now simply "Kanji Koohii" (if you read out the logo :-)) !

For existing users: "Sight reading" has moved under Study > "Kanji Recognition". The "Labs" page has now found its proper place under Review > "Custom Review".

If there are any issues with this update let me know through the feedback page, thank you!

Preview the redesigned Kanji Koohii !2 March 2015
The website will soon switch to the updated design. Please let me know in this thread if anything needs to be looked at before the switch !

Preview the redesigned Kanji Koohii !

The switch corresponds to the first milestone of this redesign, which is to have a fully functional site with the new layout, and the new menu-based navigation. There is still a lot of work to do, particularly the Study page which has merely been "fitted in" the new design at the moment.

New: "Cards reviewed today"26 February 2015
The Review page now displays how many flashcards have been reviewed today.

This provides better feedback for users reviewing in multiple sessions throughout the day. It is also useful if you fall behind on reviews: when there is a large pile of due cards, it's not very clear that any progress was made before and after a review. With this "today count" you can set yourself a daily limit and works towards that goal.

The flashcard count is based on your local midnight time, so make sure to set up your local time in the Edit Account page (note that this timezone setting can be shifted forward or backward at your convenience, for example if your day ends at 2am and you want a new set of due cards to appear after 2am).
Redesign Update - First preview!19 February 2015
Work is advancing on the redesign / refresh. In the January 15th update I explained my goals with this redesign / refresh (it's a bit of both). It's a LOT of work, and so I am going to improve the site in incremental updates.

Preview the redesigned Kanji Koohii !

Try it out, so you can get familiar with it now, and let me know what you think!

In today's preview the redesigned navigation bar and the dropdown menus should be working on desktop and mobile. On touch devices, you should be able to tap the "Study" and "Review" tabs, and pick something from the dropdown.

However please note it is normal that it is not that much friendly, because the mobile view is not optimized yet, the page will still appear zoomed out. It won't look good on smaller screens, nor will it adapt to various devices, as I need to adapt the content of many pages to be flexible.

The aesthetics is also a work in progress, but you can already get a feel for where it is going, and your opinions (good / bad) are welcome.

When this redesign goes live it will be desktop optimized first. Then in further updates the site will gradually become more responsive and mobile friendly!

Please note the preview website uses the LIVE database. So you can use it already if you like it, but keep in mind you are seeing your actual flashcards / stories (not a "test" copy).
New: Due Cards Graph !7 February 2015
Today's update introduces a new bar chart on the Review page. The chart represents how many due cards are scheduled over the next seven days:

This chart can be helpful to plan your review time. For example if you have a lot more due cards today than tomorrow, you could review less cards today in order to even out your review time.

Feedback thread for this feature. Thanks to ShadowFanX for the idea!
...more in the news archive.