Free & Open Source

アンキ日本語先生 Turn any Japanese YouTube video
into Anki flashcards

Hear a word you don't know. Press Ctrl+Shift+F. Pick the subtitle. Get a card with kanji, reading, meaning, examples, and native audio — in under 60 seconds. No copy-paste. No tab-switching.

⬇ Download for Windows ⬇ Download for macOS

Requires Anki · Chrome (Edge, Firefox & Safari coming soon)

How it works

Seven steps. All keyboard. Never leave Anki.

Watch Japanese YouTube

Open any Japanese video in Chrome. AJS runs silently in the background.

Hear something? Press the shortcut

Hit Ctrl+Shift+F the moment you hear an unfamiliar word.

Fuzzy-search the subtitle

A picker shows every subtitle segment — search in romaji, hiragana, or kanji. Three lines per entry.

Confirm your word

AJS extracts the target word and shows it to you. Press Enter to look it up.

AI builds the card

A local AI model (Ollama) generates the dictionary entry. Runs 100% offline.

Preview and approve

See the full card — kanji, reading, meaning, JLPT level, example sentences, audio.

Card added to Anki

Press Enter and the card lands in your deck. Done.

Every card, fully formed

勉強 べんきょう to study
覚える おぼえる to memorise
単語 たんご vocabulary
日本語 にほんご Japanese

Each card includes the kanji, furigana reading, meaning, part of speech, JLPT level, an example sentence with romaji and English translation, and synthesised native-speaker audio.

View on GitHub →

Features

🔒

100% Offline AI

Ollama runs locally on your machine. No API key. No subscription. No data leaves your computer.

🔊

Native Audio

Azure TTS generates natural Japanese audio (ja-JP-NanamiNeural) for every card you create.

🔍

Romaji / Kana / Kanji Search

Fuzzy-search subtitle segments however you think — romaji, hiragana, or kanji all work.

⌨️

Keyboard-First

Every step is Enter to confirm, Escape to go back. No mouse. No y/n prompts. No typing.

🔁

Auto Retry

Exponential backoff on LLM timeouts. Connection errors fail fast with a clear message.

🐛

Built-in Crash Reporter

If something breaks, one keypress files a full diagnostic report directly to GitHub.

Download

Free. No account required. Installer handles everything.

🪟

Windows

Windows 10 / 11
⬇ Download .exe
🍎

macOS

Coming soon
Download .pkg

Also requires: Anki 2.1.55+
The installer handles everything else — Ollama, the AI model, and all dependencies.

Already have Anki? Install the add-on directly:

⬇ Download Anki Add-on (.ankiaddon)

Double-click the file — Anki installs it automatically.

Requirements

ComponentDetails
Anki2.1.55 or newer (Qt6 build recommended)
BrowserChrome — supported
Edge · Firefox · Safari — coming soon
OSWindows 10/11 · macOS 13+
Ollama + AI ModelInstalled automatically by the setup wizard — no manual steps