WordHub – AI Dictionary & Vocabulary Builder

Tracking since Apr 1, 2026.

Changelog

• May 18, 2026
  host_permissions

  <all_urls>, https://api.wordhub.top/*, https://*.wordhub.top/*, https://api.openai.com/*, https://api.anthropic.com/*, https://generativelanguage.googleapis.com/*, https://api.deepseek.com/*, https://openrouter.ai/*, http://localhost:11434/*, http://127.0.0.1:11434/*

  <all_urls>, https://api.wordhub.top/*, https://*.wordhub.top/*, https://api.openai.com/*, https://api.anthropic.com/*, https://generativelanguage.googleapis.com/*, https://api.deepseek.com/*, https://openrouter.ai/*, http://localhost:4002/*, http://127.0.0.1:4002/*, http://localhost:11434/*, http://127.0.0.1:11434/*

• May 14, 2026
  description

  WordHub is your AI-powered vocabulary learning companion for mastering English while browsing the web.
  
  🎯 HOW IT WORKS
  Hover over any word → Press Alt+D → Get instant definitions, pronunciation (IPA), frequency data, and more. No tab switching, no interruptions.
  
  📖 SMART WORD LOOKUP
  • Definitions from WordNet (world's largest English lexical database)
  • Word frequency rankings from SUBTLEX-US (51M word corpus)
  • Etymology trees and word family connections
  • Word roots, prefixes, and suffixes breakdown
  
  🤖 AI-POWERED LEARNING
  • AI Explanations – Get context-aware insights for any word
  • Paragraph Translation – Hover over paragraphs to translate into your native language
  • AI Chat – Ask follow-up questions about any word or concept
  
  📊 VOCABULARY MANAGEMENT
  • Save words with one click while reading
  • Spaced repetition (SM-2) for long-term retention
  • Daily quiz with definition, fill-in-the-blank, and spelling modes
  • Import/export word lists (Anki, CSV, plain text)
  
  🔍 PAGE TOOLS
  • Page Scan – Highlight all difficult words on any webpage
  • Reading Mode – Clean, distraction-free article view
  • Word frequency analysis for any page
  
  🌐 MULTILINGUAL SUPPORT
  • Interface available in English, 中文, 日本語, 한국어, Español, Français, Deutsch, and more
  • AI-powered translations in 20+ languages
  
  ✅ PRIVACY FIRST
  • No account required to start
  • Your vocabulary stays in your browser
  • Optional sync with free WordHub account
  • No ads, no tracking, no data selling
  
  PERFECT FOR:
  • GRE, TOEFL, IELTS, SAT test preparation
  • ESL/EFL learners at any level
  • Academic researchers and students
  • Business English professionals
  • Anyone who reads English online
  
  🆓 FREE FEATURES
  All core features are free forever. Premium AI features use your own API key — no subscription required.
  
  KEYBOARD SHORTCUTS
  • Alt+D – Look up selected word
  • Alt+S – Save/unsave word
  • Alt+Shift+D – Toggle sidebar
  
  Built with ❤️ for language learners worldwide.
  Website: https://wordhub.top

  WordHub is your AI-powered vocabulary learning companion for mastering English while browsing the web.
  
  🎯 HOW IT WORKS
  Hover over any word → Press Alt+X → Get instant definitions, pronunciation (IPA), frequency data, and more. No tab switching, no interruptions.
  
  📖 SMART WORD LOOKUP
  • Definitions from WordNet (world's largest English lexical database)
  • Word frequency rankings from SUBTLEX-US (51M word corpus)
  • Etymology trees and word family connections
  • Word roots, prefixes, and suffixes breakdown
  
  🤖 AI-POWERED LEARNING
  • AI Explanations – Get context-aware insights for any word
  • Paragraph Translation – Hover over paragraphs to translate into your native language
  • AI Chat – Ask follow-up questions about any word or concept
  
  📊 VOCABULARY MANAGEMENT
  • Save words with one click while reading
  • Spaced repetition (SM-2) for long-term retention
  • Daily quiz with definition, fill-in-the-blank, and spelling modes
  • Import/export word lists (Anki, CSV, plain text)
  
  🔍 PAGE TOOLS
  • Page Scan – Highlight all difficult words on any webpage
  • Reading Mode – Clean, distraction-free article view
  • Word frequency analysis for any page
  
  🌐 MULTILINGUAL SUPPORT
  • Interface available in English, 中文, 日本語, 한국어, Español, Français, Deutsch, and more
  • AI-powered translations in 20+ languages
  
  ✅ PRIVACY FIRST
  • No account required to start
  • Your vocabulary stays in your browser
  • Optional sync with free WordHub account
  • No ads, no tracking, no data selling
  
  PERFECT FOR:
  • GRE, TOEFL, IELTS, SAT test preparation
  • ESL/EFL learners at any level
  • Academic researchers and students
  • Business English professionals
  • Anyone who reads English online
  
  🆓 FREE FEATURES
  All core features are free forever. Premium AI features use your own API key — no subscription required.
  
  KEYBOARD SHORTCUTS
  • Alt+X – Look up selected word
  
  Built with ❤️ for language learners worldwide.
  Website: https://wordhub.top

• Apr 21, 2026
  description

  WordHub is your AI-powered vocabulary learning companion for mastering English while browsing the web.
  
  🎯 How It Works Hover over any word → Press Alt+D → Get instant definitions, pronunciation (IPA), frequency data, and more.
  
  🌟 Key Features
  
  📖 Smart Word Lookup
  
  Definitions from WordNet (world's largest English lexical database)
  Word frequency from SUBTLEX-US (51M word corpus)
  Etymology trees and word family connections
  🤖 AI-Powered Learning
  
  AI Explanations – Get context-aware insights for any word
  Paragraph Translation – Hover over paragraphs to translate into your language with natural, fluent AI translation
  Quick Prompts – Ask AI about usage, synonyms, memory aids
  📤 Share & Preview
  
  Create beautiful word cards to share on social media
  Export vocabulary as images or text
  💾 Build Your Vocabulary
  
  One-click save to personal collection
  Track progress with frequency-based stats
  Review with spaced repetition
  🔒 Privacy First
  
  No account required • All data stays on your device • Open source
  ⌨️ Shortcuts
  
  Alt+D: Look up word | Esc: Close
  📱 Perfect For ESL/EFL learners • GRE/SAT/TOEFL prep • Avid readers • Writers • Word lovers
  
  🔗 Sync with WordHub.top Connect to wordhub.top for cross-device sync and advanced AI learning paths.

  WordHub is your AI-powered vocabulary learning companion for mastering English while browsing the web.
  
  🎯 HOW IT WORKS
  Hover over any word → Press Alt+D → Get instant definitions, pronunciation (IPA), frequency data, and more. No tab switching, no interruptions.
  
  📖 SMART WORD LOOKUP
  • Definitions from WordNet (world's largest English lexical database)
  • Word frequency rankings from SUBTLEX-US (51M word corpus)
  • Etymology trees and word family connections
  • Word roots, prefixes, and suffixes breakdown
  
  🤖 AI-POWERED LEARNING
  • AI Explanations – Get context-aware insights for any word
  • Paragraph Translation – Hover over paragraphs to translate into your native language
  • AI Chat – Ask follow-up questions about any word or concept
  
  📊 VOCABULARY MANAGEMENT
  • Save words with one click while reading
  • Spaced repetition (SM-2) for long-term retention
  • Daily quiz with definition, fill-in-the-blank, and spelling modes
  • Import/export word lists (Anki, CSV, plain text)
  
  🔍 PAGE TOOLS
  • Page Scan – Highlight all difficult words on any webpage
  • Reading Mode – Clean, distraction-free article view
  • Word frequency analysis for any page
  
  🌐 MULTILINGUAL SUPPORT
  • Interface available in English, 中文, 日本語, 한국어, Español, Français, Deutsch, and more
  • AI-powered translations in 20+ languages
  
  ✅ PRIVACY FIRST
  • No account required to start
  • Your vocabulary stays in your browser
  • Optional sync with free WordHub account
  • No ads, no tracking, no data selling
  
  PERFECT FOR:
  • GRE, TOEFL, IELTS, SAT test preparation
  • ESL/EFL learners at any level
  • Academic researchers and students
  • Business English professionals
  • Anyone who reads English online
  
  🆓 FREE FEATURES
  All core features are free forever. Premium AI features use your own API key — no subscription required.
  
  KEYBOARD SHORTCUTS
  • Alt+D – Look up selected word
  • Alt+S – Save/unsave word
  • Alt+Shift+D – Toggle sidebar
  
  Built with ❤️ for language learners worldwide.
  Website: https://wordhub.top

• Apr 21, 2026
  short_description

  Look up words with Alt+D. Get definitions, pronunciation, frequency data, and build your vocabulary. Perfect for language learners.

  Look up any word while browsing. Get definition, pronunciation, etymology, AI explanations, and spaced repetition — all in one tool.

• Apr 21, 2026
  name

  WordHub - Vocabulary Learning Assistant

  WordHub – AI Dictionary & Vocabulary Builder

Permissions & access

Permissions

storageactiveTabcontextMenusdeclarativeNetRequest

Host access

<all_urls>, https://api.wordhub.top/*, https://*.wordhub.top/*, https://api.openai.com/*, https://api.anthropic.com/*, https://generativelanguage.googleapis.com/*, https://api.deepseek.com/*, https://openrouter.ai/*, http://localhost:4002/*, http://127.0.0.1:4002/*, http://localhost:11434/*, http://127.0.0.1:11434/*

Screenshots

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