Graded readers
Readers strictly calibrated by AI across CEFR levels A1–C2. Read with parallel bilingual translation, continuous word-by-word narration, and total Web↔Mobile progress sync.
AI-generated graded readers, strictly calibrated to your CEFR level. Word-by-word narrated audio, a synced vocabulary deck, and a personal tutor — across web and mobile.
Join 100+ readers learning with LibroLang
The old keeper noticed a subtle change in the evening wind. Far across the harbor, a single boat drifted through the silence of the ancient sea, and he heard the waves whisper against the stones below.
Delicate, elusive; not obvious or loud.
Seamless cross-platform synchronization that goes with you anywhere.
Readers strictly calibrated by AI across CEFR levels A1–C2. Read with parallel bilingual translation, continuous word-by-word narration, and total Web↔Mobile progress sync.
Read the same story in your native language, then in your target language. The proven parallel reading method — now digital.
Generate entirely new readings on any subject you love — from science fiction to history — with difficulty and vocabulary tailored precisely to your level.
A single tap on any word reveals its definition, phonetic pronunciation, lemmas and audio. Add it to your study deck in a second.
Complete a book to unlock the interactive comprehension quiz. The AI tutor scores your answers in detail and returns personalized feedback to accelerate fluency.
Android and iOS apps, 100% optimized for portability. History, saved words and statistics sync seamlessly.








Shuffle your deck (Fisher–Yates), flip cards to review lemmas, mark words as mastered.
Premium word-by-word narration, engineered to work perfectly online and off.
Full reading quizzes, natively integrated with the AI tutor engine on your phone.
Continue reviews and sessions without relying on a network connection.
iOS App is live. Android app is in final certification.
Four steps to transform how you learn a language.
Pick a book matched to your CEFR level and the topics you care about.
Immerse yourself. Premium AI audio narrates, synced word-by-word.
Tap unfamiliar words to reveal definitions and save them to your deck.
Take comprehension quizzes and review flashcards to lock in memory.
Join LibroLang and unlock a world of personalized language learning across Web, Android & iOS.
Scan the QR code to connect with @LibroLang_bot on Telegram. Ask questions, explore features, and interact directly with our AI assistant.
I built the entire LibroLang ecosystem (Web, Mobile, and AI infrastructure). If you need an experienced developer to bring your custom apps, platforms, or AI agents to life, I'm available for freelance projects. Let's build something incredible together.
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