Your Journey to Academic Excellence Starts Here.
Master any subject with our world-class interactive tutorials, quizzes, and free academic tools, all designed to help you learn smarter, not harder.
Choose Your Path
Chemistry
From the atom to chemical bonds, explore the building blocks of the world around us through a story-driven curriculum.
Start Chemistry PathPhysics
Uncover the laws of the universe, from classical mechanics to the mysteries of quantum physics. (New!)
Start Physics PathMath
Build a strong foundation in mathematics, from algebra and geometry to the fundamentals of calculus. (New!)
Start Math PathInteractive Learning Games
Chemistry Formula Scratch-Off
Test your knowledge of chemical formulas with a fun, satisfying scratch-off game. Can you guess the formula before time runs out?
Play GameMath Graph Reveal
Build your visual intuition for functions. Guess the shape of a graph from its equation, then scratch to see if you're right!
Play GamePhysics Concept Scratch-Off
How well do you know the laws of the universe? Guess the physics concept from its definition in this fast-paced game.
Play GameFeatured Tools
Chemical Equation Balancer
Our most popular tool. Instantly balance any chemical equation and get a step-by-step breakdown of the atom inventory.
Use BalancerVSEPR Shape Visualizer
A 3D interactive tool to explore molecular shapes. See how lone pairs affect geometry in real-time.
Use VisualizerElectron Configuration Generator
Generate full and noble gas configurations for any element, complete with orbital diagrams and exception explanations.
Use GeneratorMolar Mass Calculator
Quickly calculate the molar mass of any chemical compound, with support for complex formulas and parentheses.
Use CalculatorEssential Study Tools
GPA Calculator
Instantly calculate your GPA with support for multiple grading scales. Track your academic progress semester by semester.
Use ToolCitation Generator
Create perfect citations in seconds. Supports APA, MLA, and Chicago formats with automatic bibliography generation.
Use ToolGrade Calculator
Calculate what grade you need on your final exam to achieve your target course grade. Perfect for exam planning.
Use ToolMath Equation Solver
Solve equations, inequalities, and systems of equations with step-by-step explanations and interactive graphs.
Use ToolKinematics Calculator
Solve physics problems for u, v, a, t, s. Input any 3 variables to find the unknowns.
Use ToolInteractive Quizzes
Periodic Table Quiz
Master the elements with our interactive quiz covering symbols, atomic numbers, and properties.
Take QuizChemical Bonding Quiz
Test your knowledge of ionic, covalent, and polar bonds, plus VSEPR shapes.
Take QuizChemical Reactions Quiz
Test your knowledge of the 5 main reaction types: synthesis, decomposition, and more.
Take QuizBuilt for Student Success
Lightning Fast
No loading screens, no lag. Get instant results whether you're on your phone, tablet, or laptop.
Your Privacy Matters
Zero tracking, no account required. Your academic data stays on your device, always.
Made by Students
We've been in your shoes. Every feature is designed to solve real student problems we've experienced ourselves.
Study Anywhere
Whether you're on your phone, tablet, or laptop, our resources are designed to work perfectly wherever you areโno app required.