Visualize algorithms, code execution, financial models, and mathematical proofs with our interactive derivation tools. Learn through doing, not just reading.
Complex concepts become clear when you can see each step unfold before your eyes.
See exactly what happens at each step, from variable changes to state transitions.
Step forward, backward, or jump to any point. Learn at your own pace.
Go beyond memorization. Truly understand the "why" behind each operation.
See common errors and anti-patterns alongside correct approaches.
Our tools cover essential domains in programming, algorithms, finance, and mathematics.
Visualize JavaScript execution with call stacks, scopes, event loops, and variable lifecycles.
Watch sorting, searching, and dynamic programming algorithms execute in real-time.
Step through compound interest, DCF analysis, and payback period calculations.
Follow proofs, solve equations, and understand physical formulas step by step.
Select a tool to start your interactive learning journey.
Bubble Sort, Quick Sort, Merge Sort, and more with step-by-step visualization.
AlgorithmBinary Search, DFS, BFS with path visualization and comparison tracking.
AlgorithmUnderstand JavaScript's event loop with macro/micro task visualization.
Code ExecutionVisualize function calls, execution context, and stack frames.
Code ExecutionSee how your money grows period by period with detailed breakdowns.
FinanceDiscount cash flows step by step with present value calculations.
FinanceSolve linear, quadratic, and systems of equations with step-by-step solutions.
MathDerive fundamental physics equations from kinematics to energy conservation.
MathEach step comes with clear explanations, highlighting what changed and why.
Initial State: We start with an unsorted array [5, 2, 8, 1, 9]. In Bubble Sort, we'll compare adjacent elements and swap if they're in the wrong order.
Understanding what not to do is just as important as knowing what to do.
while (left < right) { // Missing =
mid = (left + right) / 2;
// May miss the target
}while (left <= right) { // Correct
mid = left + (right - left) / 2;
// Handles all cases
}Master CS fundamentals and ace your algorithms course.
Debug and understand complex code behavior.
Create engaging visual explanations for your students.
Prepare for technical interviews with visual practice.
Yes! All tools are completely free to use. We believe in making education accessible to everyone. There are no hidden fees, subscriptions, or premium features locked behind paywalls.
No. All calculations run entirely in your browser. We don't collect, store, or transmit any of your input data. Your privacy is fully protected.
Absolutely! Educators are welcome to use these tools in their classrooms. Feel free to share them with your students. We'd love to hear about how you're using them!
Our tools work on all modern browsers including Chrome, Firefox, Safari, and Edge. We recommend using the latest version for the best experience.
All processing happens locally in your browser
We never collect or store your personal data
Educational tools built by developers for learners
Clear explanations with no hidden complexity
Start visualizing complex concepts today. No signup required.