Algorithm reference
LM hash calculator
LM is exposed only for compatibility with historical Windows authentication data.
Unsafe legacy password format
128-bit output
32 hex characters
Digest calculator
Text to hash
Never enter a real account password or any other secret. Submitted text is processed by the server, but never placed in the URL, logs, analytics, or ads.
Practical guidance
About LM
Legacy interoperability and defensive analysis. It is not a modern password-storage format.
Collision resistance
Collision resistance is not the relevant safety property; fast unsalted guessing is the primary risk.