Sensei on my Side

Tracking since May 24, 2026.

Changelog

• Jun 14, 2026
  description

  "Eiko-sensei is always right next to you—helper-coach and companion all in one!"
  
  Sensei on my Side is a secure, 100% offline-first Chrome extension that sits comfortably in your sidebar to accelerate your English language mastery. Leveraging the power of your machine's built-in local AI model (Gemini Nano), Sensei translates page contents, extracts vocabulary, generates multiple-choice quizzes, and chats with you in real-time—with absolute privacy.
  
  🚀 Key Capabilities:
  
  Anki-style Study Deck: Automatically saves and navigates through past curriculum cards with historical study date tags [YY.MM.DD] so you can visualize your long-term progress.
  RPG-style Evolving Avatar: Your coach changes visually (Chibi Student 🎒 up to Pristine Wizard 🧙‍♂️✨) next to the TOEIC level slider based on your active language goals!
  Responsive Conversation Loop: Chat with Sensei about any text segment. Watch Eiko sweat 💦 and think 💭 in real-time while streaming answers, and cheer with sparkles ✨ on successful resolution.
  Contextual Dictionary Mode: Highlight any single word or short phrase. Sensei automatically shifts from page summary to dictionary layout—delivering local translations, business synonyms, and example sentences.
  🔐 100% Offline & Private:
  
  Zero cloud connections. All processing happens locally on your CPU/GPU. Your scraped pages and chat histories never leave your computer, making it completely safe for reading corporate docs and internal work tool pages.
  ⚙️ Quick Setup Guide (Required to Run): Because this extension runs completely locally, it requires enabling Chrome's built-in Prompt API. Follow these steps to activate:
  
  Navigate to chrome://flags in a new tab.
  Enable #prompt-api-for-gemini-nano (Set to Enabled).
  Enable #optimization-guide-on-device-model (Set to Enabled BypassPrefRequirement).
  Click "Relaunch" to restart Chrome.
  Open chrome://components in a new tab, find "Optimization Guide On Device Model", and click "Check for update" to download the local AI model bundle.
  Reload Sensei in the side panel, choose your Target Score, and start learning on any webpage!

  🏆 "Dreaming of reading global news in English effortlessly every morning?"
    📈 "Want to train your English skills using daily real-world news articles?"
    
    Eiko-sensei is here to make that dream a reality! 🎓✨
    Open your browser side panel, and your personal AI language coach Eiko (英子) is always sitting right on your side ("Yokoie" / 横居)!
    
    Since she is powered by Chrome's built-in local AI engine, Gemini Nano, all processing runs entirely on your own device. 100% offline, private, secure, and completely free! 🔒💻
    
    ---
    
    🚀 Key Features
    
    1️⃣ One-Click Turn Webpages into Lessons! 📰
    Simply click "Coach Me" on any English article. Eiko-sensei instantly generates a step-by-step curriculum: Article Summary ➡️ Vocabulary Breakdown ➡️ Key Idiomatic Phrases ➡️ Reading Comprehension Quiz!
    
    2️⃣ RPG-Style Avatar Leveling System 🎒➡️🧙‍♂️
    Set your target TOEIC score (500 to 900+). Eiko-sensei's pixel-art avatar dynamically evolves from a rookie "Chibi Student 🎒" into a "Business Consultant 💼" and ultimately a "Pristine Wizard 🧙‍♂️✨"!
    
    3️⃣ Smart Active Recall Study Deck 🗂️
    All vocabulary items generated during lessons are automatically saved into a study card deck. Every card keeps track of its origin URL so you can jump back to the source article with one click.
    
    4️⃣ Contextual Highlighting Dictionary 🔍
    Highlight 1-3 words on any page and right-click to instantly look up definition keys, relevant business synonyms, and 2 target TOEIC-style example sentences.
    
    5️⃣ Interactive Contextual Q&A 💬
    Confused by a phrase or sentence? Directly ask Eiko-sensei in the sidebar chat. Watch her dynamic emoji states shift (thinking/sweating 💭💦 to happy sparkles ✨🎉) as she replies natively in Japanese or your preference!
    
    ---
    
    ⚙️ Prerequisites (How to download Gemini Nano locally)
    Because this extension runs 100% offline, you need to enable and download Gemini Nano in Chrome:
    
    1. Enable Chrome Flags at chrome://flags:
       - #optimization-guide-on-device-model ➡️ Set to Enabled BypassPrefRequirement
       - #prompt-api-for-gemini-nano ➡️ Set to Enabled
       - Relaunch Chrome.
    
    2. Force the component download via DevTools console (F12 on any page):
       - Run: await ai.languageModel.create();
    
    3. Check status at chrome://components:
       - Find Optimization Guide On Device Model and click "Check for update". Once it says "Component updated", you're good to go!

• Jun 14, 2026
  short_description

  Meet Eiko-sensei, a retro-RPG style English Coach in your side panel! 100% private and offline, powered by Gemini Nano.

  Dreaming of reading English news every morning or training your English with daily news? Eiko-sensei is here in your side panel!

Permissions & access

Permissions

sidePanelstoragetabsscriptingcontextMenus

Host access

None declared

Screenshots