X# (pronounced X Sharp) is a HLA (High Level Assembler) for X86/X64 assembly. In the future other flavors for ARM and other processors are planned.

X# is integrated into Visual Studio and we are working on support for Visual Studio Code as well. X# can also be used using simple text editors such as notepad.

X# creates NASM style assembly ready to assemble with NASM.
For more information, be sure to visit the documentation and the repository (hosted on GitHub)
X# Documentation
X# repository at GitHub