Signature Lab

Signature Lab is a free, open-source byte-signature maker for x64dbg and x32dbg. Select an instruction, press Alt+Shift+S, and get a signature that survives the next update. It wildcards operands, checks that the signature is unique across the whole module, can build reference signatures, and outputs every common pattern format.

To install, extract the zip into your x64dbg folder, the one that contains the release folder.

The plugin binaries are unsigned. Antivirus software may flag a debugger plugin that reads process memory. Build from source if you would rather not take a binary on trust.

Source code: https://github.com/HeathHowren/Signature-Lab
Guides and docs: https://gamereversal.club/tools/signature-lab/
License: MIT

Project Samples

The Signature Lab menu in the x64dbg CPU view

A forward signature and three reference signatures in the x64dbg log

The Signature Lab dialog: mode, output form and wildcard classes

Testing a pattern: every match listed in the x64dbg References tab

Project Activity

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License

MIT License

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Signature Lab Web Site

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Additional Project Details

Operating Systems

Windows

Registered

2026-10-04

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