About EnglishBtoC
Learn English Vocabulary With AI - Levels B1-C2
Our Story
EnglishBtoC was born from a simple idea: learning vocabulary should be fun, personalized, and efficient.
Instead of memorizing random word lists, we believe you should learn vocabulary from topics you're passionate about - whether it's technology, sports, music, or any field you love.
That's why we built EnglishBtoC - a platform that uses Artificial Intelligence to help you extract vocabulary from any English text, classify it by CEFR levels (B1-C2), and practice through interactive exercises with instant feedback.
Our Mission
We aim to make learning English accessible to everyone worldwide. Every feature is designed to help you learn faster, remember longer, and practice more effectively.
What Makes Us Different?
AI-Powered Smart Extraction
Simply paste any English text, AI analyzes and extracts the most important vocabulary for you
Learn From Context
Each word comes with real-world example sentences, helping you understand usage and remember better
CEFR B1-C2 Classification
Vocabulary classified by international standard B1-C2, learn at the right level
Multi-Language Support
Explanations in 7 languages: Vietnamese, Japanese, Korean, Chinese, Thai, Spanish, French
Instant Feedback
Immediate right/wrong results. Green means correct, red means try again
100% Free
All features free forever. No hidden fees, no subscription required
The Team Behind
EnglishBtoC is developed by viegoAI - a team passionate about education and technology.
We combine expertise in Artificial Intelligence, Software Development, and Language Education to create the best learning experience for you.
Technology We Use
Google Gemini AI - State-of-the-art AI for vocabulary extraction and explanation
CEFR Standard - International Common European Framework for language proficiency
Next.js - Modern web framework for optimal performance
Local Storage - Your data stored securely on your device
Our Core Values
User First
Every feature designed for the best learning experience
Quality
Commitment to the highest quality in every detail
Innovation
Continuously improving and adding new features
Open & Free
100% free, accessible to everyone worldwide