Open-Source Tool for Shellcode Testing
Shellcode Loader is an open-source, lightweight command-line utility designed to load and test custom shellcodes.
This tool reads a user-supplied shellcode file and executes it directly within the memory space of its own process, allowing developers and security researchers to validate payload behavior in a controlled environment.
Some of our Shellcode Loader advantages:
- Supports both 32-bit and 64-bit shellcodes
- Works on any Windows from WinXP up to Win11
- Written in C
- Free & Open Source
Shellcode Loader provides 3 different shellcode loading methods:
- C Function
- CallWindowProc
- Inline ASM
This tool is particularly useful for:
- Testing custom payloads in lab environments
- Security research and defensive analysis
- Learning how executable memory works
- Studying in-memory execution methods
The tool must only be used after accepting our Terms of Service, in controlled environments and with explicit authorization.
BreakingSecurity does not support or condone illegal or unauthorized use of this software.
Changelog:
v1.1 | 20 Feb 2026
[+] 64-bit support: Added 64 bit architecture to load 64 bit shellcodes
[*] Other minor code improvements and refactoring.