[Userscript] WaniKani Item Page Opener

WaniKani API And Third-Party Apps
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:warning: This is a third-party script and is not created by the WaniKani team. It may stop working at any time.

What is it?

A small userscript that adds an “open in new tab” button to the character header during reviews. It lets you quickly jump to the full item page without leaving your review session — the page opens in a background tab so you stay focused.

I built this for myself because I often wanted to check an item’s details mid-review without breaking my flow. Figured I’d share it in case anyone else finds it useful!

Screenshot

sample
sample2024×180 10.4 KB

Installation

  1. Install a userscript manager if you don’t have one — Tampermonkey is recommended.

  2. Click here to install the script

  3. Done! Start a review session and you’ll see a small icon in the bottom-right corner of the character header.

Features

  • Adds a non-intrusive external-link button to the review character header

  • Works with all item types: Kanji, Vocabulary, Kana Vocabulary, and Radicals

  • Opens pages in a background tab — your review session stays in focus

  • Keyboard shortcut: Alt + P (Windows/Linux) / Option + P (macOS)

  • Supports WaniKani’s SPA navigation (Turbo) — works across page transitions

  • No dependencies, no external requests, no WaniKani API key needed

Supported Pages

  • /subjects/review — standard reviews

  • /subjects/extra_study — extra study

  • /recent-mistakes — recent mistakes

Keyboard Shortcut

Press Alt + P (or Option + P on macOS) during a review to open the current item’s page without clicking. On some macOS keyboard layouts the shortcut may register as π — that’s handled too.

Source Code

GitHub · Greasy Fork — MIT License