SIMPLANG
Learn any language, simply — study methods, fluency roadmaps, and the science of how we learn to speak.
From estimating your hours to fluency and pacing a vocabulary goal to scheduling spaced-repetition reviews, self-assessing your CEFR level, tracking immersion hours, and keeping a study streak, Simplang pairs free hands-on calculators with practical guides and a richly illustrated museum of language. Study smarter, speak sooner.
Language-Learning Tools & Calculators
Free tools for every learner — hours-to-fluency estimator, spaced-repetition review scheduler, vocabulary goal calculator, CEFR self-assessment scorer, immersion hours tracker, and study-streak consistency calculator.
Hours-to-Fluency Estimator
Estimate how long it takes to reach a CEFR level from your daily study time, your starting point, and how distant the language is from ones you know
Spaced-Repetition Review Scheduler
Project the SM-2 review dates for a vocabulary card so you revise just before you'd forget — the expanding intervals behind Anki
Vocabulary Goal Calculator
Work out the words-per-day pace to hit a vocabulary target by a deadline, adjusted for how much you actually retain
CEFR Self-Assessment Scorer
Rate your listening, reading, speaking, and writing to estimate your overall CEFR level — reported as your weakest skill, with the average for context
Immersion Hours Tracker
Log daily listening, reading, and watching to see total immersion hours, your active-day average, and progress toward an input-hours goal
Study-Streak Consistency Calculator
Mark the days you studied to see your current streak, longest streak, and the consistency percentage that actually predicts progress
Museum of Language
Wander an immersive museum of human language — the great tongues and language families of the world, the writing systems and scripts from cuneiform to Braille, the science of linguistics and the thinkers who built it, and the famous polyglots and milestones of language history, each in its own gallery. Every entry, image, and fact is drawn from Wikipedia and Wikimedia Commons.
Tour the museum →From the Journal
Guides on study methods and fluency, vocabulary and grammar, pronunciation and phrases, polyglot habits, and how languages actually work — reading to pair with the calculators above.
The Polyglot Phenomenon: Mastering Multiple Languages in a Globalized World
Mastering Language Hacks: Practical Strategies for Rapid Fluency and Cognitive Growth
Basics: Modern Approaches and Techniques
The Roadmap to Linguistic Fluency: Mastering Language Beyond Basic Communication
Understanding Pronunciation in Today's World
Redefining the Purpose of Modern Phrasebooks
Keep Learning
Plain-language explainers on how people learn a language, how vocabulary and grammar fit together, the science of phonetics and meaning, and the languages of the world — everything you need to dig deeper and speak sooner.
Visit the Learn hub →