The ultimate toolkit for learning any language.

Ride the language waves with confidence.

Learn, translate, practice, and get help when you need it—whether you’re studying, having a conversation, or exploring something new.

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Features

Everything you need to stay in your learning flow

RADLing adapts to how you learn, whether you are building foundations or refining fluency.

Lessons on demand

Learn what you need, when you need it. Create a lesson for an upcoming trip, a night out, a conversation, or anything else you want to learn.

Directions / Restaurant / Travel / Everyday Life / …

Lesson goal: Asking directions and purchasing train tickets.
Lessons

Learning at your level

Start where you are. Build from there. RADLing adjusts to your experience, whether you’re learning your first words or refining what you already know.

Beginner · Intermediate · Advanced · Fluent

Beginner
Beginner: Apple, with Korean pronunciation, examples, and phrases
Intermediate
Intermediate: Journey, with Korean pronunciation, examples, and phrases
Advanced
Advanced: Perspective, with Korean pronunciation, examples, and phrases
Fluent
Fluent: Nuance, with Korean pronunciation, examples, and phrases

More than vocabulary

Learn the language, not just the words. Practice pronunciation, understand grammar, build conversations, and learn the culture behind the language.

Speak · Understand · Communicate

Practice

Translations that teach

Don’t just translate it. Understand it. Explore natural phrasing, pronunciation, explanations, and context behind what you are saying.

Translate · Explore · Understand

Translation

How it works

Your goal → Your lesson → Real practice

Start with what matters to you. Learn it, practice it, and put it to use.

  1. Step 1

    Personalize

    Tell RADLing what you want to learn. Choose a language, goal, situation, or topic and make it yours.

  2. Step 2

    Learn

    Get a lesson built around you. RADLing adapts explanations, examples, and practice to your level and goals.

  3. Step 3

    Practice

    Build on what you’ve learned. Keep improving through speaking, listening, vocabulary, translation, flashcards, and more.

Lesson

Configured for you

Create lessons around what you want to learn.

Learner asks: What if I want to ask whether a seat is available?
German AI language companion response with an expanded phrase breakdown
Lesson creation form with a train travel prompt and suggested lesson
Saved Korean vocabulary about the sea, waves, and surfing with English meanings
Korean vocabulary for wave with examples, phrases, and cultural context
Chinese grammar with translated examples
Practice menu with vocabulary, sentence structure, pronunciation, translation, and dialog quizzes
Spanish idiom translated into literal and natural English with pronunciation and an explanation
A traveler and station staff dialog with line-by-line audio controls
Learner asks: What if I want to ask whether a seat is available?
German AI language companion response with an expanded phrase breakdown
Lesson creation form with a train travel prompt and suggested lesson

Languages

20 languages supported and growing

Learn popular languages and explore more options.

Popular + niche

Learn the languages that matter to you

RADLing supports 20 languages with more being added regularly.

English
Chinese (Mandarin)
Chinese (Cantonese)
Japanese
Korean
Thai
Vietnamese
Danish
Dutch
French
German
Greek
Italian
Norwegian
Polish
Portuguese
Russian
Spanish
Swedish
Turkish