Learn Whitespace - 10 Code Examples & CST Typing Practice Test

Whitespace is an esoteric programming language that uses only spaces, tabs, and linefeeds as syntax. All non-whitespace characters are ignored, making programs invisible to the casual observer.

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Hello World in Whitespace Whitespace Push Number Whitespace Duplicate Top Whitespace Swap Top Two Whitespace Addition Whitespace Subtraction Whitespace Print Character Whitespace Label and Jump Whitespace Conditional Jump Whitespace End Program

Learn WHITESPACE with Real Code Examples

Updated Nov 25, 2025

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Code Sample Descriptions

Hello World in Whitespace

SSSTSTSSSLSSSTSTSSSLSSSTTSSSLSSSTTSSSLSSSTSTSSSLSSSTTSSSL

A 'Hello World' in Whitespace consists only of spaces, tabs, and newlines. Below is a textual representation using S (space), T (tab), and L (linefeed).

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Whitespace Push Number

SSSSSTSSL  // Push 5 onto stack

Pushes a number onto the stack.

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Whitespace Duplicate Top

SSSTL  // Duplicate top of stack

Duplicates the top item of the stack.

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Whitespace Swap Top Two

SSTL  // Swap top two stack elements

Swaps the top two elements of the stack.

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Whitespace Addition

TSSSL  // Add top two numbers

Adds the top two numbers of the stack.

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Whitespace Subtraction

TSSSTL  // Subtract top from second top

Subtracts the top number from the second top number.

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Whitespace Print Character

TSTSSSL  // Print top as char

Prints the top number as ASCII character.

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Whitespace Label and Jump

SSSTLSSS  // Label definition
TTSLSSS  // Jump to label

Defines a label and jumps to it unconditionally.

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Whitespace Conditional Jump

SSSTLSSS  // Label definition
TSTLSSS  // Jump if zero

Jumps to a label if top of stack is zero.

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Whitespace End Program

LTL  // End program

Terminates the Whitespace program.

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Frequently Asked Questions about Whitespace

What is Whitespace?

Whitespace is an esoteric programming language that uses only spaces, tabs, and linefeeds as syntax. All non-whitespace characters are ignored, making programs invisible to the casual observer.

What are the primary use cases for Whitespace?

Code obfuscation and stealth programs. Esolang research and experimentation. Interpreter-building demonstrations. Educational stack-based execution examples. Novelty programming challenges

What are the strengths of Whitespace?

Extremely obfuscated code. Good for interpreter design practice. Simple core instruction set. Whitespace-only stealth programs. Compact and minimal syntax

What are the limitations of Whitespace?

Hard to read and write without tools. Invisible code makes debugging difficult. Not suited for real-world applications. Editors often auto-strip whitespace. Code corruption is easy and common

How can I practice Whitespace typing speed?

CodeSpeedTest offers 10+ real Whitespace code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.

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Code Sample Descriptions

Hello World in Whitespace

SSSTSTSSSLSSSTSTSSSLSSSTTSSSLSSSTTSSSLSSSTSTSSSLSSSTTSSSL

A 'Hello World' in Whitespace consists only of spaces, tabs, and newlines. Below is a textual representation using S (space), T (tab), and L (linefeed).

Let’s Try →

Whitespace Push Number

SSSSSTSSL  // Push 5 onto stack

Pushes a number onto the stack.

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Whitespace Duplicate Top

SSSTL  // Duplicate top of stack

Duplicates the top item of the stack.

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Whitespace Swap Top Two

SSTL  // Swap top two stack elements

Swaps the top two elements of the stack.

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Whitespace Addition

TSSSL  // Add top two numbers

Adds the top two numbers of the stack.

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Whitespace Subtraction

TSSSTL  // Subtract top from second top

Subtracts the top number from the second top number.

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Whitespace Print Character

TSTSSSL  // Print top as char

Prints the top number as ASCII character.

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Whitespace Label and Jump

SSSTLSSS  // Label definition
TTSLSSS  // Jump to label

Defines a label and jumps to it unconditionally.

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Whitespace Conditional Jump

SSSTLSSS  // Label definition
TSTLSSS  // Jump if zero

Jumps to a label if top of stack is zero.

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Whitespace End Program

LTL  // End program

Terminates the Whitespace program.

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Frequently Asked Questions about Whitespace

What is Whitespace?

Whitespace is an esoteric programming language that uses only spaces, tabs, and linefeeds as syntax. All non-whitespace characters are ignored, making programs invisible to the casual observer.

What are the primary use cases for Whitespace?

Code obfuscation and stealth programs. Esolang research and experimentation. Interpreter-building demonstrations. Educational stack-based execution examples. Novelty programming challenges

What are the strengths of Whitespace?

Extremely obfuscated code. Good for interpreter design practice. Simple core instruction set. Whitespace-only stealth programs. Compact and minimal syntax

What are the limitations of Whitespace?

Hard to read and write without tools. Invisible code makes debugging difficult. Not suited for real-world applications. Editors often auto-strip whitespace. Code corruption is easy and common

How can I practice Whitespace typing speed?

CodeSpeedTest offers 10+ real Whitespace code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.