Welcome to Lingomon, the browser extension that turns vocabulary building into an adventure! Every new word you encounter becomes a collectible creature in your personal WordDex.
Lingomon is an educational browser extension that makes learning new words fun and engaging. As you browse the web, you can "catch" interesting words by right-clicking them. Each word has a rarity tier (just like your favorite collecting games!), complete with bright, colorful popups and a tier system that turns vocabulary building into an exciting journey.
- Catch Words: Right-click any word on any website to add it to your WordDex
- Real Frequency-Based Rarity: Words assigned tiers based on actual linguistic data from Datamuse API
- Toggle between English and Korean UI
- Korean-English dictionary lookup for Korean words
- Automatic translation of English definitions to Korean
- Translated badges and interface elements
- Beautiful Popups(v1.6): Enjoy vibrant, color-coded notifications when you catch a new word
- WordDex(v1.6): View your entire collection with frequency scores and rarity tiers
- Dictionary Integration(v1.6): Get definitions and etymology for words you catch
- Persistent Storage(v1.6): Your WordDex is saved locally and never lost
- Dark Mode(v1.6): Toggle between light and dark themes
- Statistics & Charts(v1.6): Track your collection with visual analytics
- Badges & Achievements(v1.6): Unlock badges for milestones(Also find some secret easter eggs on the way!)
- Daily Streaks(v1.6): Build vocabulary learning habits
- Quiz Mode(v1.6): Test your knowledge of caught words
- Multi-language Support(v1.7): English + Korean (Add your language!)
- Battle Mode(v1.8): Make teams of words you collected and battle active users
- Profiles(v1.8): View your fellow catchers and battle them!
- Context preservation(v1.8): Preserves where you caught the word
- Custom tags(v1.8): You can tag and filter words as you want!
- Cloud storage(v1.8): Now your data is secure and able to load everywhere!
- Science Expansion(v1.8.1): Catch chemical elements, planets, and species to see real scientific data!
- Evolution System(v1.8.2): Train words in quiz to level them up and evolve into stronger forms (Bronze ★, Silver ★★, Gold ★★★)!
- Daily Training(v1.8.2): Earn SRS (Spaced Repetition System) XP to make words battle-ready.
- Tech Cards 2.0(v1.8.2): Matrix-themed cards for programming terms, powered by Semantic Context7 AI.
No coding required! Help me add support for your language:
- Fill out the Language Request Template
- Research free dictionary APIs (I'll guide you!)
- Submit as a GitHub issue
- I implement it and credit you!
Priority Languages: Spanish, French, German, Japanese, Portuguese, Arabic, Chinese, Hindi, Russian
See How to Request a Language for detailed instructions.
- Chrome/Edge/Brave: Coming soon to Chrome Web Store
- Firefox: Coming soon to Firefox Add-ons
- Download or clone this repository
git clone https://github.com/VectorSophie/lingomon.git cd lingomon - Copy
config.example.jstoconfig.js(for Korean API support) - Open your browser's extension page:
- Chrome: Navigate to
chrome://extensions/ - Firefox: Navigate to
about:debugging#/runtime/this-firefox - Edge: Navigate to
edge://extensions/
- Chrome: Navigate to
- Enable "Developer mode" (toggle in the top right)
- Click "Load unpacked" (Chrome/Edge) or "Load Temporary Add-on" (Firefox)
- Select the Lingomon folder
- The Lingomon icon should appear in your browser toolbar!
- Catch a word: Right-click on any word while browsing and select "Catch this word!"
- View your WordDex: Click the Lingomon icon in your browser toolbar
- Watch your collection grow: Each word shows its rarity tier with a beautiful color
Words are now classified based on real linguistic frequency data from the Google Trillion Word Corpus via Datamuse API! No more randomness - rarity reflects actual word usage in English.
Each word's rarity is determined by its frequency per million words in real-world usage:
- Primary Source: Datamuse API (real-time linguistic data)
- Fallback: Local database (~400 common words)
- Caching: Frequency stored permanently with each word
- Display: Shows frequency score in word details (e.g., "76.07 per million")
≥ 100 per million - Your everyday words, the foundation of language
- Examples: the (5000), and (2000), have (740), time (500), people (160)
- Description: Basic grammar, common verbs, everyday nouns
- Usage: Found in nearly every conversation and text
25-99 per million - Educated vocabulary and formal contexts
- Examples: friend (76), education (7.1), technology (3.6), government (1.34)
- Description: Formal nouns, business terms, specialized fields
- Usage: Common in writing but less frequent in casual speech
5-24 per million - Advanced vocabulary and academic writing
- Examples: based (5.0), special (4.4), interesting (3.9), significant (3.3)
- Description: Academic adjectives, sophisticated descriptors
- Usage: Found in professional discourse and literature
1-4 per million - High-level specialized vocabulary
- Examples: author (0.23), process (0.145), advanced (0.1), medical (0.012)
- Description: Technical jargon, specialized fields
- Usage: Academic papers, professional contexts
0.1-0.99 per million - Rare, sophisticated vocabulary
- Examples: register (0.06), action (0.05), movie (0.02), story (0.004)
- Description: Highly specialized terms, uncommon contexts
- Usage: Specialized literature, advanced academic writing
< 0.1 per million - Extremely rare and archaic words
- Examples: ephemeral (0.003), serendipity (0.0025), juxtaposition (0.001), perspicacious (0.0002)
- Description: Literary devices, archaic terms, highly technical vocabulary
- Usage: Rare in modern usage, specialized academic/literary contexts
- Real Data: Frequencies may surprise you! Common social words like "friend" are Uncommon (76/million), not super common.
- API vs Intuition: Linguistic frequency doesn't always match perceived commonness.
- Legacy Words: Words caught before v2.0 retain their old randomized rarity.
- Unknown Words: Words not in database/API default to Mythic.
5,000+ ████████████████████ Ultra-common (the, and, of)
1,000 ███████████████ Very common (for, by, this)
100 ██████████ Common threshold
25 ████ Uncommon threshold
5 ██ Rare threshold
1 █ Epic threshold
0.1 ▓ Legendary threshold
< 0.1 ░ Mythic (extremely rare)
Based on linguistic analysis:
- Common (100+): ~40% of word catches (everyday vocabulary)
- Uncommon (25-99): ~25% of catches (educated vocabulary)
- Rare (5-24): ~20% of catches (advanced vocabulary)
- Epic (1-4): ~10% of catches (specialized vocabulary)
- Legendary (0.1-0.99): ~4% of catches (rare vocabulary)
- Mythic (<0.1): ~1% of catches (extremely rare)
- Words not found in the database or API are treated as Mythic (assumed < 0.1)
- The system uses Datamuse API for real-time lookup with local database fallback
Lingomon values your privacy:
- All data is stored locally in your browser
- No personal information is collected or transmitted
- External API calls:
- Free Dictionary API - Word definitions and etymology (English)
- Datamuse API - Real-time word frequency data (English)
- Korean Learners' Dictionary - Korean-English dictionary (Korean mode only)
- MyMemory Translation API - English-to-Korean translation (Korean mode only)
- DiceBear API - Generates unique robot avatars for user profiles
- Context7 API - Semantic Tech Definitions (Powered by AI)
- GBIF API - Biological species data
- PubChem API - Chemical element data
- Solar System OpenData - Planet/Moon data
- Fallback: Local frequency database used when APIs are unavailable
I welcome contributions of all kinds! Here are ways you can help:
No coding required! Research dictionary APIs for your language and I'll implement it.
- Submit: Create Language Request
Found a bug? Let me know!
Have an idea? I'd love to hear it!
Want to contribute code? Check out the guide:
- Star this repo
- Share with friends
- Write a review on the Chrome Web Store (https://chromewebstore.google.com/detail/lingomon/panaoaejgjhkibbdmghgbgkmmkmcnkbo?hl=ko&utm_source=ext_sidebar) Read the full Contributing Guide for more details.
Thank you to all contributors!
- Korean - VectorSophie (solo developer, original implementation)
- More coming soon! Add your language
Want to be listed here? Check out the Contributing Guide!
This project is open source and available for educational purposes. Respect the AGPL 3.0 License!
Happy word catching! May your WordDex be filled with legendary finds!