How to Set Up Yomitan and 10ten Inside YomiNinja

Yomitan — the complete setup

Yomitan is pre-installed in YomiNinja's Chromium context. It works exactly like the browser extension — the same settings UI, the same dictionary files, the same Anki export. The only difference is that it triggers on overlay text inside your games rather than webpages.

Opening Yomitan settings

In YomiNinja's toolbar, click the Yomitan icon (the Yomitan logo or the puzzle-piece Extensions menu). A settings page opens in YomiNinja's browser context. This is the standard Yomitan Settings interface.

Importing your first dictionary

1. In Yomitan Settings, go to Dictionaries in the left sidebar.
2. Click Import.
3. Download JMdict (English) from the jmdict-yomitan releases page. The file is a .zip — import it directly without extracting.
4. Wait for import to complete (30–90 seconds depending on your machine).
5. The dictionary will appear in the list with a green checkmark.

Recommended dictionary files

YomiNinja's Yomitan supports any standard Yomitan-compatible dictionary file. Here are the most useful ones for Japanese game reading:

Configuring scanning for games

Disable the modifier key requirement

By default, Yomitan requires holding a modifier key (usually Shift) while hovering to trigger a popup. In a game context, this is inconvenient — you want lookups to fire on hover alone.

To disable: Yomitan Settings → Scanning → Modifier Keys — uncheck all modifier key requirements. The popup will now appear whenever you hover overlay text.

Adjust scanning delay

The scanning delay controls how long you need to hover before the popup appears. A value of 0ms triggers immediately on hover — useful if you're quickly scanning many words. A delay of 200–400ms prevents accidental popups as your cursor moves through text.

For gaming, 100–200ms is a comfortable balance.

Popup size and position

In Popup → Size and Position, you can set the popup width, height, and which direction it expands from the cursor. For games where the dialogue box is at the bottom of the screen, set the popup to expand upward to avoid it being cut off.

Setting up Anki export

To export vocabulary from YomiNinja's Yomitan to Anki, you need AnkiConnect installed in Anki. AnkiConnect exposes a local API that Yomitan calls when you click "Add card".

1. Install the AnkiConnect add-on in Anki (code: 2055492159).
2. In Yomitan Settings → Anki, enable the Anki integration and set the server URL to http://127.0.0.1:8765.
3. Click Test to verify connection. Anki must be running for this to work.
4. Under Card Format, configure which deck to export to and which Anki note type to use.

Once configured, a green + button appears in the Yomitan popup. Click it to export the current word (and the surrounding game sentence from the texthooker page) as an Anki card.

10ten Reader

10ten Reader is an alternative Japanese popup dictionary that also ships pre-installed in YomiNinja. It's a complete separate extension with its own UI and dictionary engine.

To switch between Yomitan and 10ten: open YomiNinja's Extensions Manager and enable/disable each extension as needed. You can run both simultaneously, though this may cause popup overlap — most users prefer one or the other.

10ten's popup shows a slightly different layout — definitions are displayed in a compact list without the pitch accent visualization that Yomitan provides. Some learners find it less cluttered; others prefer Yomitan's additional information. Try both and use whichever you prefer.

Installing additional Chrome extensions

YomiNinja includes a Chrome Extensions Manager that lets you install any Chromium-compatible extension into YomiNinja's browser context:

1. In YomiNinja, click the Extensions button in the toolbar.
2. Find the extension you want to install (Inkah, Migaku, custom tools).
3. Install it. The extension will be active in YomiNinja's Chromium context only — it won't affect your main browser.