$ winget install --id fasm.fasm --exact --version 1.73.32Run in Command Prompt, PowerShell, or Windows Terminal. Prompts for any agreements.
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The flat assembler (abbreviated to fasm, intentionally stylized with lowercase letters) is a fast assembler running in a variety of operating systems, in continued development since 1999. It was designed primarily for the assembly of x86 instructions and it supports x86 and x86-64 instructions sets with extensions like MMX, 3DNow!, SSE up to SSE4, AVX, AVX2, XOP, and AVX-512. It can produce output in plain binary, MZ, PE, COFF or ELF format. It includes a powerful but simple macroinstruction system and does multiple passes to optimize the size of instruction codes. The flat assembler is self-hosting and complete source code is included.
The only difference between flat assembler versions included in the following packages is the operating system on which they can be run. For any given source text each version is going to generate exactly the same output file, therefore every one of the following releases can be used to compile programs for any operating system.
Copy a command tailored to that specific architecture, type, and scope - useful when winget would otherwise pick a different default.
No known CVEs for Flat Assembler.
Coverage is best-effort and depends on a winget package mapping to an NVD CPE entry. Absence here is not a guarantee of safety.