Hey everyone,
For the past few weeks I’ve been chipping away at a side project instead of bravely shrinking my review pile. Figured I’d share it here.
Meet
Bunbee
— it started as “what if we had a place to write our own mnemonics and actually share them?” After using WK for a long time, I kept hitting mnemonics that just didn’t click for me, so I’d invent my own — often in my native language, or tied to something random in my life that only I would find memorable. Bunbee is basically built around that habit.
Two main things it does today (and they work best together with the browser extension):
1 — 
Personal & community mnemonics
You can save mnemonics per item, in whatever language you want, and pull them up on the site. If you install the extension, the same stuff shows up right on the review screen, so you don’t have to context-switch.
You can also browse what other people wrote, save the ones you like, and leave comments to riff or add context. If you’ve got a mnemonic that works for you but you don’t want it public, you can mark it private.
There are a few quality-of-life controls when writing: a highlight shortcut for marking important bits in the text, plus reading buttons (where it applies) so dropping readings into the mnemonic is faster.
2 — AI context sentences (only using WK vocab you’ve learned)
Bunbee can generate Japanese example sentences using vocabulary you’ve already unlocked in WaniKani — so you’re not getting random words you’ve never seen. You can pick a word list for a batch, or generate something quick for a single item. You can save outputs to revisit later.
Select between Apprentice, Guru+, or Critical on what you need to focus on. You can tune grammar level (N5–N1) and choose 1, 3, or 5 sentences per run.
Both mnemonics and sentences have filters so you can actually find stuff again.
About the extension
I’m working on getting it published in all the browser stores. For now, it’s available on Mozilla Add-ons to be installed directly. Also, you can load it directly in Edge by downloading the package from below.
Firefox: https://addons.mozilla.org/addon/bunbee-for-wanikani
Manual install:
Download bunbee-extension
The in-review panel has two tabs: Mnemonics and Example sentences. The idea is to stay in flow with keyboard shortcuts:
-
B — show / hide the panel
-
← / → — switch between the two tabs (when the panel is open)
-
N — “do the main thing” on the active tab: open add mnemonic on Mnemonics, or trigger generate sentences on the other tab
After installing: You need to log-in using your WK token from the Extensions menu on your browser:
After that, you should get something like this:
Now it’s ready to use:)
Login & privacy note
You only sign in with your WaniKani API token — and you can use a token with read-only permissions. That’s enough for the app and the extension to do their job.
Mobile
The web app works on mobile, but if you want the full “reviews + panel + shortcuts” experience, desktop + extension is what I’d recommend.
Feedback
I’m always open to suggestions, ideas, and bug reports—this is a hobby project, and it improves thanks to community input. If something feels off or you wish it did X, feel free to drop a suggestion 
