Lesson Import & Reader

The integrated Lesson Importer and Reader give you end-to-end control over sourcing, ingesting, customizing, and studying content—whether from YouTube, PDFs, audio, or subtitle files. Import, translate, theme, and drill vocabulary all in one interactive workflow.


Available to LanguageMaster Standard & Gold subscribers.

Chrome Firefox Safari Supported on Desktop, Tablet & Mobile

Lesson Importer

Quickly create new lessons by importing from multiple sources, customizing processing options, and generating learning assets automatically.

Lesson Import Demo

Quick Workflow

  • Click Import Lesson on your dashboard.
  • Choose source: YouTube, subtitles, text, PDF, EPUB, or audio.
  • Set language, configure options (translations, lemmas, transliteration, cards).
  • Upload/paste URL, give it a title, and create the lesson.
  • Auto-redirect to the Reader when done.
Preserve audio, generate AI flashcards, and control cost before import.
Lesson Import Features
FeatureDescription
Multi-source Import YouTube, subtitle files (SRT/VTT/TTML/XML/ASS), plain text, PDFs, EPUBs, or raw audio/URLs.
Language Selection Set the import & dictionary languages to drive translations, transliterations, and morphology.
AI Flashcards Automatic creation of new word cards with deep levels of information.
Lemma & Transliteration Modes Include base forms, generate missing lemmas via AI, and choose between built-in or AI transliteration.
Selective Translation Translate only new words or full captions depending on your workflow.
Cost Estimation Preview token usage for AI operations before committing.

LanguageMaster Reader

An interactive reading environment with deep customization: translations, transliteration, thematic styling, hotkeys, and synchronized media playback.

Reader Demo

Core Capabilities

  • Custom themes with full color & effect control.
  • Sentence and word translations, transliteration, and hints.
  • Media tracking with synchronized highlighting.
  • Hotkeys for efficient navigation and status setting.
  • Flashcards creation, status management, and spaced review integration.
All changes persist; your last session is restored automatically.
Reader Features
FeatureDescription
Theme Selection & Editor Pick from 50 predefined themes or fully customize colors, word effects (underline/italic/shadow), transliteration, hints, and highlights.
Translations & Hints Sentence-level and word-level translations, optionally hidden for known words, with adjustable appearance.
Transliteration Multiple systems supported; toggle visibility and adjust size inline.
Media Sync Auto-pagination, tracking of current word/sentence, and audio/video playback embedded.
Hotkeys Extensive rebindable keybindings for playback, word status, navigation, and toggles.
Flashcards & Word Status One-click status assignment, AI card creation, and visibility of learning progress.
Advanced Controls Phrase interaction, diacritics toggling, directionality, and part splitting.
Compatibility Web app supported on Safari/Chrome/Chromium/Firefox across desktop, tablet, and mobile.

Accessing Lessons

Imported lessons and reader sessions are reachable via multiple entry points: