NASM Alternatives
Apps similar to NASM include Pelles C, which is free for personal use. Other options are flat assembler, Easy code, Yasm and MASM Builder. In total there are seven IDEs like NASM for Windows, Linux and Mac.
Alternatives list
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 sets with MMX, 3DNow!, SSE up to SSE4, AVX, AVX2 and XOP extensions, can produce output in plain binary, MZ...
Cost / License
- Free
- Open Source
Platforms
- Windows
- Linux
Easy Code is the visual assembly programming environment made to build 32-bit Windows applications. The Easy Code interface, looking like Visual Basic, allows you to program Windows assembler applications (executable files, dynamic and static libreries, COFF object files...
Cost / License
- Free
- Open Source
Application type
Platforms
- Windows


Yasm is a complete rewrite of the NASM assembler. It supports the x86 and AMD64 instruction sets, accepts NASM and GAS assembler syntaxes and outputs binary, ELF32 and ELF64 object formats.
Cost / License
- Free
- Open Source
Platforms
- Windows
- Linux
- Haiku
MASM Builder is a free Integrated Development Environment IDE for developing 32-bit Windows programs using the Assembler. MASM Builder contains many useful features which will assist you in creating Windows API based programs.
Cost / License
- Free
- Proprietary
Platforms
- Windows
Ukraine


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 Microsoft's free download of current Masm versions, which are for non-commercial use only.
Cost / License
- Free
- Open Source
Platforms
- Windows
- Linux

















