Free Online Brainfuck Visualizer & Debugger

Visualize Brainfuck code execution step-by-step with memory cell visualization and debugging.

How to use Brainfuck Visualizer

Enter or paste Brainfuck code in the editor
Click "Execute & Visualize" to run the code
Use step controls to navigate through execution
Watch memory cells and pointer changes in real-time
View output as it's generated

Brainfuck Commands:

> Move pointer right

< Move pointer left

+ Increment cell

- Decrement cell

. Output character

, Input character

[ Loop start

] Loop end

Settings

Visualization Speed

Delay:

Memory Size

Cells:

Quick Examples

Brainfuck Code

Input (for comma operator)

Execution Time

s

Instructions

Memory Used

/

Output Length

Execution Visualization - Step of (%)

Code Execution

Memory Tape (Showing cells)

Zero (0)

Low (1-64)

Medium (65-128)

High (129-192)

Very High (193-255)

Current Pointer

Output

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How to Use

Step-by-step guide 3 steps

1 Input Brainfuck Code: Paste your esoteric Brainfuck code (made up of > < + - . , [ ]).
2 Input Data (Optional): Provide any initial input data required by the program's , commands.
3 Visualize: Click "Run & Visualize" to see the code execute step-by-step, showing the memory tape changes and output in real-time. Visualize Brainfuck code now!

FAQ

Common questions 3 questions

Use Cases & Examples

Real-world applications 3 examples

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