LanguageShadow: AI Shadowing for YouTube™

Tracking since Apr 4, 2026.

Changelog

• Jun 8, 2026
  description

  LanguageShadow: AI Pronunciation Feedback & Shadowing for YouTube™
  
  Master pronunciation on YouTube™ with real-time AI feedback and the shadowing method.
  
  How it works
  
  LanguageShadow pauses the video after each subtitle line. Listen, then speak — AI scores your pronunciation word by word. Repeat until it sounds right, then move on.
  
  Key features
  
  Dual subtitles — target and native language side by side
  AI pronunciation scoring — Accuracy, Fluency, Completeness (+ Prosody for English)
  Auto-pause after every sentence for shadowing practice
  Keyboard shortcuts — Z previous · X next · R replay (hands-free navigation)
  Total 33 languages and accents supported
  
  Who it's for
  
  Anyone learning a language from YouTube — from beginners building listening skills to advanced learners polishing their accent.
  
  Privacy
  
  Voice recordings are sent to our servers only for scoring and are not stored or shared. Optional anonymous usage analytics are off by default. See https://languageshadow.com/privacy
  
  YouTube is a trademark of Google LLC. Use of this trademark is subject to Google Permissions.

  LanguageShadow turns any YouTube™ video into active speaking practice. Pick a subtitle line, repeat it out loud, and get an AI pronunciation score on every word — built for learners who want to speak, not just watch.
  
  How it works
  1) Pick — Click any subtitle line on YouTube™ with the dual-subtitles overlay
  2) Listen — Hear it in the original speaker's voice, at full speed
  3) Repeat — Speak the line into your microphone
  4) Score — AI grades your pronunciation against the line, phoneme by phoneme
  5) Improve — Retry until it feels natural, or move to the next line
  6) Track — See your accuracy across sessions in the side panel
  
  Key features
  • Dual subtitles on YouTube™ — your native language alongside the one you're learning
  • Line-by-line shadowing — pause, replay, and repeat any caption with one click
  • AI pronunciation scoring — phoneme-level feedback, not just a single accuracy number
  • 33 languages and regional voices — English (US/UK/AU/CA/IN), Spanish (Spain/Mexico), French, German, Italian, Portuguese (Brazil/Portugal), Russian, Mandarin (CN/HK/TW), Japanese, Korean, Arabic (Egypt/Saudi), and more
  • Side-panel progress — track which lines you've nailed and which to revisit
  • Free for the core loop — 10 AI grades per day, with 3 grades before you sign in
  
  Why LanguageShadow
  • Active practice, not passive watching — most extensions show subtitles; this one scores how you sound
  • Real content, not canned dialogues — practice with the YouTube™ videos you already watch
  • Honest limits — Free: 10 AI grades/day. Pro: 1,000 grades/month for $7.99 (any applicable tax is shown at Paddle checkout before you pay)
  • YouTube™-native — practice without leaving the page, no separate course library to learn
  
  Perfect for
  • Intermediate and advanced learners moving from comprehension to fluent speaking
  • Students preparing for IELTS speaking, TOEFL speaking, OPI, Cambridge speaking exams, or job interviews in a second language
  • Self-learners using YouTube™ shadowing and caption practice as their main daily routine
  • Polyglots tuning accent and pronunciation across multiple languages
  • Anyone using comprehensible input who's ready to start producing speech, not just absorbing it
  
  Privacy
  We record audio only when you press the practice button, and use it solely for pronunciation scoring. Optional analytics is off by default. Full policy: https://languageshadow.com/privacy
  
  Install LanguageShadow and start speaking the language you're learning today.

• Jun 8, 2026
  name

  LanguageShadow: AI Pronunciation Feedback & Shadowing for YouTube™

  LanguageShadow: AI Shadowing for YouTube™

• May 25, 2026
  description

  [BETA] LanguageShadow: AI Language Learning & Dual Subtitles for YouTube
  Master any language naturally by watching your favorite YouTube videos. LanguageShadow adds precision dual subtitles and AI-powered pronunciation coaching to your immersion routine.
  
  🚀 WHY LANGUAGESHADOW? Immersion is the secret to fluency. LanguageShadow leverages the "Shadowing Method"—a proven linguistic technique—to help you master the rhythm, intonation, and pronunciation of native speakers directly while watching your favorite content.
  
  💡 KEY FEATURES:
  
  Dual Subtitles: See target and native language subtitles simultaneously for 100% comprehension and instant vocabulary mapping.
  AI Pronunciation Coach: Speak along with the video and get instant, detailed feedback on your Accuracy, Fluency, and Prosody.
  Advanced Shadowing Mode: The player automatically pauses after every sentence, allowing you to listen, record, and compare your voice to the native speaker seamlessly.
  Smart Repetition: Target difficult phrases or specific words and loop them until you achieve perfection.
  29 Languages Supported: Practice English, Spanish, French, German, Japanese, Chinese, Korean, Arabic, and many more.
  🌟 BENEFITS FOR LEARNERS:
  
  Improve Pronunciation: Sound more like a native speaker by mimicking real-world speech patterns.
  Expand Vocabulary: Learn words in context, not from dry lists or flashcards.
  Boost Listening Skills: Train your ears to understand different accents and natural speaking speeds.
  Build Confidence: Practice recording and listening to yourself in a low-pressure, private environment.
  🎯 PERFECT FOR:
  
  Students preparing for language exams (TOEFL, DELE, JLPT, etc.).
  Travelers aiming for better communication and listening skills.
  Professionals working in international or multi-lingual environments.
  Language Enthusiasts who love learning from authentic YouTube content.
  🔒 PRIVACY & SECURITY: Your privacy is our priority. Voice data is processed in real-time solely for scoring purposes and is immediately discarded. We do not store, save, or share your audio recordings.

  LanguageShadow: AI Pronunciation Feedback & Shadowing for YouTube™
  
  Master pronunciation on YouTube™ with real-time AI feedback and the shadowing method.
  
  How it works
  
  LanguageShadow pauses the video after each subtitle line. Listen, then speak — AI scores your pronunciation word by word. Repeat until it sounds right, then move on.
  
  Key features
  
  Dual subtitles — target and native language side by side
  AI pronunciation scoring — Accuracy, Fluency, Completeness (+ Prosody for English)
  Auto-pause after every sentence for shadowing practice
  Keyboard shortcuts — Z previous · X next · R replay (hands-free navigation)
  Total 33 languages and accents supported
  
  Who it's for
  
  Anyone learning a language from YouTube — from beginners building listening skills to advanced learners polishing their accent.
  
  Privacy
  
  Voice recordings are sent to our servers only for scoring and are not stored or shared. Optional anonymous usage analytics are off by default. See https://languageshadow.com/privacy
  
  YouTube is a trademark of Google LLC. Use of this trademark is subject to Google Permissions.

• May 25, 2026
  short_description

  Master any language on YouTube with AI Shadowing and Dual Subtitles. Your real-time AI pronunciation coach for 100% fluency.

  Master any language on YouTube with AI shadowing and dual subtitles. Your real-time pronunciation coach.

• May 25, 2026
  name

  LanguageShadow: AI Language Learning & Dual Subtitles for YouTube

  LanguageShadow: AI Pronunciation Feedback & Shadowing for YouTube™

• May 25, 2026
  host_permissions

  *://*.youtube.com/*, https://*.azurewebsites.net/*

  *://*.youtube.com/*, https://languageshadow.com/*, https://api.languageshadow.com/*, https://formspree.io/*, https://*.supabase.co/*

• May 25, 2026
  permissions

  storage, activeTab

  sidePanel, storage, activeTab, identity

• Apr 17, 2026
  description

  [EARLY ACCESS] Master languages naturally by watching your favorite YouTube videos. LanguageShadow adds dual subtitles and AI-powered pronunciation practice to YouTube.
  🚀 EARLY ACCESS FEATURES:
  • Dual Subtitles: See target and native language subtitles simultaneously.
  • AI Pronunciation Coach: Speak the subtitles and get instant feedback on accuracy, fluency, and prosody.
  • Shadowing Mode: Auto-pauses after each sentence so you can repeat and practice.
  • Smart Repetition: Loop difficult phrases until you master them.
  • 6 Languages Supported: English, Spanish, French, German, Japanese.
  PERFECT FOR:
  Language learners who want to go beyond textbooks and learn from real native content.
  PRIVACY:
  We do not store your voice data. Audio is processed solely for scoring and immediately discarded.

  [BETA] LanguageShadow: AI Language Learning & Dual Subtitles for YouTube
  Master any language naturally by watching your favorite YouTube videos. LanguageShadow adds precision dual subtitles and AI-powered pronunciation coaching to your immersion routine.
  
  🚀 WHY LANGUAGESHADOW? Immersion is the secret to fluency. LanguageShadow leverages the "Shadowing Method"—a proven linguistic technique—to help you master the rhythm, intonation, and pronunciation of native speakers directly while watching your favorite content.
  
  💡 KEY FEATURES:
  
  Dual Subtitles: See target and native language subtitles simultaneously for 100% comprehension and instant vocabulary mapping.
  AI Pronunciation Coach: Speak along with the video and get instant, detailed feedback on your Accuracy, Fluency, and Prosody.
  Advanced Shadowing Mode: The player automatically pauses after every sentence, allowing you to listen, record, and compare your voice to the native speaker seamlessly.
  Smart Repetition: Target difficult phrases or specific words and loop them until you achieve perfection.
  29 Languages Supported: Practice English, Spanish, French, German, Japanese, Chinese, Korean, Arabic, and many more.
  🌟 BENEFITS FOR LEARNERS:
  
  Improve Pronunciation: Sound more like a native speaker by mimicking real-world speech patterns.
  Expand Vocabulary: Learn words in context, not from dry lists or flashcards.
  Boost Listening Skills: Train your ears to understand different accents and natural speaking speeds.
  Build Confidence: Practice recording and listening to yourself in a low-pressure, private environment.
  🎯 PERFECT FOR:
  
  Students preparing for language exams (TOEFL, DELE, JLPT, etc.).
  Travelers aiming for better communication and listening skills.
  Professionals working in international or multi-lingual environments.
  Language Enthusiasts who love learning from authentic YouTube content.
  🔒 PRIVACY & SECURITY: Your privacy is our priority. Voice data is processed in real-time solely for scoring purposes and is immediately discarded. We do not store, save, or share your audio recordings.

• Apr 17, 2026
  short_description

  Master languages on YouTube with AI-powered shadowing and pronunciation coaching

  Master any language on YouTube with AI Shadowing and Dual Subtitles. Your real-time AI pronunciation coach for 100% fluency.

• Apr 17, 2026
  name

  LanguageShadow: AI Shadowing & Dual Subtitles for YouTube

  LanguageShadow: AI Language Learning & Dual Subtitles for YouTube

Permissions & access

Permissions

sidePanelstorageactiveTabidentity

Host access

*://*.youtube.com/*, https://languageshadow.com/*, https://api.languageshadow.com/*, https://formspree.io/*, https://*.supabase.co/*

Screenshots

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