Learn to Think Like a Programmer

Master flowcharts and pseudocode — the building blocks of computer science. Step through interactive diagrams, then build your own.

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What You'll Learn

Read Flowcharts

Understand every shape, symbol, and arrow. Trace through diagrams like a computer executes code.

Write Pseudocode

See how flowcharts translate to pseudocode side-by-side. Bridge the gap between diagrams and real code.

Build Your Own

Drag and drop flowchart shapes to create your own diagrams. Export as images to share or print.

12 Interactive Lessons

Each lesson includes step-through animations so you can trace through flowcharts one step at a time.

01 What Are Flowcharts? 02 Sequential Flow 03 If Statements 04 If-Else 05 If-Else-If Chains 06 While Loops 07 For Loops 08 Foreach Loops 09 Variables & Assignment 10 Input / Output 11 Pseudocode Mapping 12 Review

Ready to start?

No account needed. Jump right into the first lesson.

Begin Lesson 1