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Quick Look

Mouse Dictionary is a super fast dictionary tool designed for language learners, primarily for English and Japanese, offering customizable features and phrase detection across various documents.

AI Overview

Who is this for?

Language learners and readers who frequently encounter unfamiliar words in English or Japanese across different platforms.

Key Features

  • Super fast dictionary lookups
  • Phrase detection
  • Customizable dictionary import
  • Works on PDFs, YouTube captions, and input elements

Reviews Analysis

Overall Sentiment

Overwhelmingly Positive

Users highly praise the extension's speed, functionality, and usefulness for language learning, particularly for English-Japanese translation.

Note: AI analysis focuses on the substance and recency of reviews, which may differ from the overall store rating.


What Users Love

  • Extremely fast performance
  • Useful for English-Japanese language learning
  • Supports custom dictionary imports

Points to Consider

  • × Limited language support to primarily English/Japanese
  • × Occasional issues with specific document types

Official Description

From the Developer


A super fast dictionary for Google Chrome.

Designed mainly for English and Japanese.

Features: * Super fast!!! * Awesome phrases detection * Capable of importing your own text data * Customizable view * Available on various documents: * PDF documents * YouTube captions * input elements * textarea

In addition to the built-in default English-Japanese dictionary, you can import data as you like including Japanese-English, English-English and so on. Please check here.

https://github.com/wtetsu/mouse-dictionary/wiki/Download-dictionary-data

Your extension? Let us know if we can update or correct anything!

Key Info

  • Rating:
    4.7/5.0

    (114 ratings)

  • Users:100,000
  • Version:1.7.0
  • Updated:May 02, 2025
  • Developer:Visit Website →

Stats from Chrome Web Store