If you work with industrial automation, you’ve likely encountered password-protected PLCs or HMIs from legacy or forgotten projects. Today, I want to share a free application called ALL PLC & HMI Password Key – version 2.2.1.
What it does:
This tool is designed to help technicians, maintenance engineers, and automation programmers recover or decrypt lost passwords for various PLC and HMI devices.
Supported devices:
From the interface shown:
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PLC Types: Omron, mitsubishi, delta, LS…..
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HMI Types:Omron, mitsubishi, delta, LS…..
Features:
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Clean selection menu: choose PLC or HMI type.
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Separate options: “Go to Crack PLC” or “Go to Crack HMI.”
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No complicated setup – just select your device and run.
How to use (based on UI):
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Select your PLC type from the dropdown list.
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Select your HMI type if needed.
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Click either Go to Crack PLC or Go to Crack HMI.
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Follow the on-screen instructions.
Important notes (ethical use):
⚠️ This tool should only be used:
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On equipment you own or have permission to access.
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For legitimate recovery of lost passwords (not bypassing security maliciously).
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For educational or maintenance purposes.
Where to get it:
If you find it helpful, please like and share, and leave a comment with your issue. We will support you for free.
If you need to purchase a software license, please contact us. Click here.
Thanks and Best Regards!
