NTLM Hash Generator
Type a password to generate its NTLM hash, the format Windows uses internally to store credentials.
Advertisement
What is an NTLM hash?
NTLM (NT LAN Manager) is the hashing scheme Windows has used since NT to store password credentials: it takes the password, encodes it as UTF-16LE, and runs it through the MD4 algorithm. The result is a 32-character hex string.
NTLM hashes show up in Windows security auditing, Active Directory password audits, and penetration testing labs (e.g. cracking exercises against tools like Hashcat or John the Ripper) — this tool is meant for that kind of legitimate testing and learning, on systems and data you're authorized to work with.
Frequently asked questions
- Is NTLM secure?
- No — NTLM is unsalted and MD4-based, which makes it fast to brute-force with modern hardware. Modern Windows systems use Kerberos for authentication where possible; NTLM is kept mainly for legacy compatibility.
- Why UTF-16LE encoding specifically?
- That's simply the byte encoding Windows uses internally for strings, so it's what the NTLM algorithm hashes rather than the raw ASCII/UTF-8 bytes.
- Can I use this to crack a hash back into a password?
- No, this tool only computes a hash from text you provide — it doesn't reverse a hash back into a password.