JPDB

JPDB is a Japanese dictionary and spaced-repetition site that teaches vocabulary and the kanji needed to read those words. The official homepage, checked 10 Sep 2026, describes prebuilt decks from anime, visual novels, light novels, and web novels, plus paste-in text that becomes a chronological word list. It is a vocabulary job, not a complete Japanese course.

What job it does

You study prepared vocabulary with spaced review. Frequency lists and media tags help you choose words that appear in the books, shows, or visual novels you actually use. The site also says it can suggest media where you already know a high share of the words, and that it can turn vocabulary into i+1 sentence cards.

That is a different job from Anki. Anki can hold any card you design. JPDB decides more of the material and presentation. It can partially import an existing Anki database, per the homepage.

It is also a different job from WaniKani. WaniKani is a fixed radical-to-kanji sequence. JPDB says there are no predefined levels and no preset order.

Limits

JPDB does not replace grammar study, speaking practice, or a reading habit. The FAQ, checked the same day, says there is currently no mobile app. You can add the website to a home screen. Review audio exists; autoplay depends on the browser.

The homepage advertises free entry. Check current account terms for limits or paid options.

If you already have a stable Anki deck that matches your reading, switching only adds a second queue.

How to test it

Sign in, pick one media deck or a short pasted text, and review a small daily amount for two weeks. Watch whether the words show up in your actual Japanese input. The offer path is /go/jpdb.