NTLM Generator

Generate NTLM hashes from text strings for Windows authentication testing and security analysis.

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6,900+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

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About This Tool

This NTLM Generator creates Windows NTLM (NT LAN Manager) hashes from any input text. NTLM is a challenge-response authentication protocol used in Windows environments. The tool generates both NTLMv1 and NTLMv2 compatible hashes using the MD4 algorithm after converting the input string to UTF-16LE encoding. Perfect for security professionals testing authentication systems, developers working with Windows integration, or anyone needing to generate NTLM hashes for legitimate security purposes. The interface provides options to select hash version and includes copy functionality for easy use.

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How to Use

Enter any text string in the input field
Select NTLM version (v1 or v
from the dropdown
Click 'Generate NTLM Hash' button
View the generated hash in the results section
Use the copy button to copy the hash to clipboard
Clear the form using the reset button if needed

Frequently Asked Questions

Find Quick Answers

What is NTLM hash used for?

NTLM (NT LAN Manager) hash is used in Windows authentication protocols. It's a cryptographic representation of passwords that allows systems to verify credentials without transmitting the actual password.

What's the difference between NTLMv1 and NTLMv2?

NTLMv1 uses weaker encryption and is considered insecure. NTLMv2 includes improved security features like message integrity codes and stronger encryption. NTLMv2 is the current standard for Windows authentication.

Is this tool secure for password testing?

This tool runs entirely client-side in your browser - no data is sent to any server. However, never enter actual passwords into any online tool. Use only for testing with dummy data or in controlled security environments.

What encoding does NTLM use?

NTLM hashes are calculated from the UTF-16LE (Little Endian) encoded version of the input string, then processed through the MD4 hashing algorithm to produce the final hash.

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