▽
Education & Learning
Quizzes, flashcards, and interactive learning
Typing Speed Test
WPM with accuracy and difficulty levels
Flashcard App
Spaced repetition (Leitner) stored locally
Algorithm Visualizer
Watch sorting/search algorithms step-by-step
Coming Soon
Mental Math Trainer
Timed arithmetic drills
Periodic Table Explorer
Interactive periodic table
Geography Quiz
Identify countries on SVG world map
Music Interval Trainer
Hear two notes, guess the interval
Language Vocabulary Builder
Words + translations with spaced repetition
Times Table Trainer
Multiplication drills with visual feedback
Color Blindness Simulator
Preview images with color vision deficiencies
Binary / Hex Teaching Tool
Interactive binary ↔ decimal ↔ hex