Item logo image for Hakkutsu — Japanese Immersion

Hakkutsu — Japanese Immersion

5.0(

2 ratings

)
ExtensionEducation9 users
Item media 5 (screenshot) for Hakkutsu — Japanese Immersion
Item media 1 (screenshot) for Hakkutsu — Japanese Immersion
Item media 2 (screenshot) for Hakkutsu — Japanese Immersion
Item media 3 (screenshot) for Hakkutsu — Japanese Immersion
Item media 4 (screenshot) for Hakkutsu — Japanese Immersion
Item media 5 (screenshot) for Hakkutsu — Japanese Immersion
Item media 1 (screenshot) for Hakkutsu — Japanese Immersion
Item media 1 (screenshot) for Hakkutsu — Japanese Immersion
Item media 2 (screenshot) for Hakkutsu — Japanese Immersion
Item media 3 (screenshot) for Hakkutsu — Japanese Immersion
Item media 4 (screenshot) for Hakkutsu — Japanese Immersion
Item media 5 (screenshot) for Hakkutsu — Japanese Immersion

Overview

Local-first open-source Japanese immersion extension with offline dictionary, Kuromoji parsing, SRS, and dual subtitles.

Hakkutsu is a free, local-first browser extension for Japanese language immersion and sentence mining. Features: - 100% Local & Private: Runs offline with local dictionary and parser. No API keys, no accounts, no tracking. - Instant Lookup: Hover or click Japanese text on web pages for definitions, readings, and pitch accents. - AnkiConnect Integration: 1-click word and sentence mining directly to local Anki desktop. - SRS & Word Library: Built-in spaced repetition study system with vocabulary management and word library. - Visualizations: Detailed learning stats, review analytics, study streaks, and kanji stroke order diagrams. - Video Subtitles: Interactive dual subtitles and hover lookup for YouTube, Netflix, third-party sites, and custom HTML5 video players. - Completely Free: No subscriptions, paywalls, or payments required.

Details

  • Version
    2.0.0
  • Updated
    September 9, 2026
  • Offered by
    JoshiMinh
  • Size
    2.25MiB
  • Languages
    English
  • Developer
    Sole Proprietorship
    47 Bui Huu Nghia, An Hai Bac, Son Tra Da Nang, Da Nang City 550000 VN
    Email
    joshiminh@gmail.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization
The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

For help with questions, suggestions, or problems, please open this page on your desktop browser

Google apps