</> CODINGVISUAL

Learn by seeing

Understand code, one step at a time.

CodingVisual turns algorithms into clear, interactive lessons. Follow the variables, see each decision, and build the kind of understanding that sticks.

Open Sorting Lab Browse lessons
selection_sort.cpp
for (int i = 0; i < n; i++)  find the smallest value  place it at position i
VisualWatch data change
GuidedFollow each decision
PracticalRead real C++ code

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Interactive lessons

Each lesson pairs a working visualization with the code that drives it.

Featured lesson

Sorting Lab

Compare Selection, Bubble, and Insertion Sort in one guided workspace.

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Coming next

Arrays & indexes

Learn how values are stored, accessed, and changed in an array.

In development
Coming next

Loops & conditions

See repetition and decisions play out with an easy-to-follow trace.

In development

A BETTER WAY TO PRACTISE

Don’t just read the algorithm. Trace it.

  1. 01

    Choose a lesson

    Start with a focused programming concept.

  2. 02

    Step through it

    Move forward and back at your own pace.

  3. 03

    Connect code to behaviour

    Every step highlights the line currently running.