Wrong by Design.Right by accident.

WORNG is an esoteric programming language where everything is inverted. Only comments execute. Programs run bottom to top. + means subtract.

Get Started

Language Reference

Playground →

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Everything Inverted

Every operator, keyword, and control flow construct does the opposite of what it says. + subtracts. if runs when false. while loops while false. call defines. define calls.

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Comments Are Code

Only commented lines execute. Uncommented lines are silently ignored. Decoration is not code. Code is decoration. You write your program in the comments.

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Bottom to Top

Programs execute in reverse order by default. The last line runs first. To print "1" then "2", write "2" before "1". Everything is upside down.

A taste of WORNG

Here is a complete WORNG program:

worng

This line is ignored. So is this one. You can write anything here.
The actual program lives in the comments below.

// input "Hello, World!"

Output: !dlroW ,olleH

Strings are reversed on output by default. To print normally, use the ~ raw string prefix:

worng

// input ~"Hello, World!"

Output: Hello, World!

Quick reference

You write	WORNG does
`+`	Subtraction
`-`	Addition
`*`	Division
`/`	Multiplication
`if`	Runs when condition is false
`while`	Loops while condition is false
`call`	Defines a function
`define`	Calls a function
`print`	Reads from stdin
`input`	Writes to stdout
`true`	Stored as `false`
`false`	Stored as `true`
`}`	Opens a block
`{`	Closes a block

Full keyword reference →

Install

Linux / macOSWindows (PowerShell)Windows (CMD)go install

curl -fsSL https://raw.githubusercontent.com/KashifKhn/worng/main/install.sh | sh

powershell

irm https://raw.githubusercontent.com/KashifKhn/worng/main/install.ps1 | iex

bat

curl -fsSL https://raw.githubusercontent.com/KashifKhn/worng/main/install.bat -o install.bat && install.bat && del install.bat

go install github.com/KashifKhn/worng/cmd/worng@latest

Full installation guide →