NASM The Netwide Assembler, NASM, is an 80x86 and x86-64 assembler designed for portability and modularity. It supports a range of object file formats, including Linux and... Free Open Source Mac Windows Linux Compiler Portable Add a feature 8 Like
flat assembler The flat assembler is a fast and efficient self-assembling x86 assembler for DOS, Windows and Linux operating systems. Currently it supports x86 and x86-64 instructions... Free Open Source Windows Linux No features added Add a feature 6 Like
JWasm JWasm is a Masm v6 compatible assembler. It's released under the Sybase Open Watcom Public License 1.0. JWasm can be used for virtually any purpose, unlike... Free Open Source Windows Linux No features added Add a feature 0 Like