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

What is Brainfuck?

An esoteric programming language with only eight simple commands, designed to be extremely minimalist.

What is the "memory tape"?

A one-dimensional array of memory cells (usually 30,000 cells) where the code reads and writes data.

Is the Brainfuck Visualizer an interpreter?

Yes, it interprets and executes the code while simultaneously providing a visual trace of every operation.

Use Cases & Examples

Real-world applications 3 examples

Education

Use the tool to learn and understand how the simple commands of the Brainfuck language manipulate data at a fundamental level.

Debugging

Trace complex loops and memory operations to find bugs in esoteric code snippets.

Code Challenge

Solve programming puzzles by verifying the output and memory state of a given Brainfuck program.

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