⚠️ Inactive Development of the Xenly programming language since June 17, 2026. I'm going back to being active again.

Xenly programming language

Dense, multiverse, and the successor of the C programming language

Xenly (formerly known as Xenon) is a free and open-source high-level, multi-paradigm, general-purpose programming language designed primarily for command-line interfaces, web servers, and applications. It is written in the C and Go programming languages.

Xenly programming language should be command-line interfaces, web servers, and desktop applications. It is static and dynamic typing, readability, usability, and flexibility.

Operating system supports

The Xenly programming language supports macOS, Windows, and Linux operating systems, and Windows Subsystem for Linux.

Operating systems	Interpreter (xenly)	Native compiler (xenlyc)	Xenly Virtual Machine (xenlybyc and xenlyrun)	Build automation system tool and test runner (bituin)
Linux 🐧	Yes	Yes	Yes	-
Apple macOS 🍎	Yes	Yes	Yes	-
Windows Subsystem for Linux 🪟	Yes	Yes	Yes	-
Windows 🪟	No (Not available)	No (Not available)	Yes	-
Programming language	C	C	Go	Zig

How Much Faster?

Here are times to run xenly, xenlyc, and xvm on some Xenly's example codes on GitHub of varying sizes:

Example codes	Size (LOC)	xenly	xenlyc	xvm (xenlybyc + xenlyrun)
hello.xe	3	0.051s	0.034s	0.004s
sys_demo.xe	159	0.078s	0.094s	135.861s
math_enhanced_demo.xe	223	0.005s	0.126s	0.006s
Billion nested loops	8	-	3.562s	-

Examples

1. Hello, World! program

The following shows how a "Hello, World!" program is written in Xenly programming language:

// “Hello, World!” program
print("Hello, World!")

2. Variables

A Xenly variable is created the moment you first assign a value to it.

// "var" variable to print()
const hi = "Hello, World!"
print(hi)

3. Xenly's standard library

Xenly comes with a standard library that helps establish a set of common types used by Xenly libraries and programs.

// import modules
import "math"
import "string"
import "array"

// math
print(math.PI())
print(math.E()))
print(math.sqrt(144))

// string
print(string.len("hello"))
print(string.upper("hello"))
print(string.lower("WORLD"))

// array
print(array.create(5, 0))
print(array.of(10, 20, 30, 40, 50))

Getting Started

1. Download Xenly's source code

You can download the git clone of the xenly programming language project. It is available for the macOS, WSL (Windows Subsystem for Linux), and Linux operating systems.

Warning

The xenly interpreter and the xenlyc native compiler for the Windows operating system are not available, because they are being fixed for errors and bugs.

# Download the Xenly's source code
$ git clone https://github.com/magayaga/xenly.git
$ cd xenly

2. Install Xenly's source code

You can run the program makefile, main.sh, or install-c.py for both WSL and Linux.

# Run the program (Makefile, Bash script, or Python)
$ make
$ bash main.sh
$ py install-c.py

# Run the binary code
$ ./xenly
$ ./xenlyc

3. Testing programs

# Xenly's version information
./xenly -v

# Running xenly's examples (Interpreter)
./xenly examples/hello.xe

# Running xenlyc's examples (Native compiler)
./xenlyc examples/hello.xe -o hello
./hello

Source Code Organization

The Xenly source code is organized as follows:

Directory	Contents
assets/	Types of files for the Xenly programming language
bituin/	Bituin's source code for the Xenly programming language
doc/	Documentation for the Xenly programming language
docs/	Official website for the Xenly programming language
examples/	Example code for the Xenly programming language
src/	Source code for the Xenly programming language
xvm/	XVM's source code for the Xenly programming language

If you are new to the Xenly, you should check out these additional resources.

• Official website of Xenly (Getting Started)
• Documentation of Xenly (Getting Started)

Copyright

Copyright (c) 2023-2026 Cyril John Magayaga. All rights reserved.

Licensed under the MIT license.