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Oops, I accidentally learned Japanese.

5.0(

1 rating

)
ExtensionEducation11 users
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Item media 2 (screenshot) for Oops, I accidentally learned Japanese.
Item media 1 (screenshot) for Oops, I accidentally learned Japanese.
Item media 1 (screenshot) for Oops, I accidentally learned Japanese.
Item media 2 (screenshot) for Oops, I accidentally learned Japanese.

Overview

Learn Japanese from the pages you already read. Words you're ready for get swapped in as you browse.

You read things in your browser every day. This extension puts Japanese words into them gradually until you learn them all. A word you are ready for takes the place of its English counterpart. Rest your pointer on it for half a second and it turns gold: that is you confirming that you've read it. Click the word instead and it tells you what it means, which counts as not knowing it yet. How much Japanese a page shows is worked out from what you can already read. Words you find hard come back faster. Words you know stay on the page, so what you read drifts towards Japanese rather than staying an English page with decorations in it. Pronunciation help fades one sound at a time, so it never disappears before you are ready for it to. It runs on your machine. No page you visit or data is sent anywhere. Making an account is optional and exists only to carry your progress to your other browsers. As of today 2,019 words and 1,018 kanji, N5 through N1. Support us by purchasing a license to sync between devices, which will make the extension better with time and help pay for infrastructure costs. You can always keep everything local; import, or export your progress for free forever.

5 out of 51 rating

Learn more about results and reviews.

Details

  • Version
    1.12.3
  • Updated
    September 16, 2026
  • Features
    Offers in-app purchases
  • Offered by
    Torem Labs Inc.
  • Size
    271KiB
  • Languages
    English
  • Developer
    Adel Alouani
    7045 Boulevard Notre Dame Laval, QC H7X 3Y6 CA
    Email
    info@toremlabs.com
    Phone
    +1 514-655-4482
  • Trader
    This developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.

Privacy

Manage extensions and learn how they're being used in your organization

Oops, I accidentally learned Japanese. has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.

Oops, I accidentally learned Japanese. handles the following:

Personally identifiable information
Authentication information
Website content

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, visit the developer's support site

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