日本語 Vocab Builder

Start Learning

Add new words or start a quiz from your saved decks.

Manage Decks

My Study Decks

How to Use This App

1. API Key: First, click the gear icon in the top right to add your Google AI API key. This is required for scanning words.

2. Scan Words: Click "Add New Words". Use your phone's camera to take a picture of a vocabulary page, or upload an image file. You can add multiple pages at once.

3. Review & Correct: After scanning, the app will show you the extracted words. All words are checked by default. You can uncheck words you don't want, fix any mistakes in the text, or add words the scanner missed.

4. Organize: Add the selected words to a deck. You can create new "Books" (like 'Genki I') and "Chapters" (like 'Chapter 1') to keep your vocabulary organized.

5. Study: On the home screen, you can edit chapters or start a quiz on any chapter or entire book. The quiz uses interactive flashcards.

6. Import/Export: Use the "Export All Decks" button to save a JSON backup of your words. You can use the "Import Decks" button to load a backup file, merging it with your current decks.

1. Scan Pages

Use your camera to snap a picture or upload a file. Add multiple pages before extracting.

2. Review & Correct Words

We found these words. Uncheck any you don't want, fix errors, or add new words.

Edit Deck

Words in this Chapter