Password Hash Generator

Generate cryptographic hashes of passwords and other strings

Password

Your password is never sent to our servers (except for bcrypt). All other hashing is done in your browser.

Salt

Optional. When provided, computes HMAC using this as the key.

Algorithm

bcrypt Cost Factor

Higher cost = slower but more secure. 12 is a good default. 16 can take several seconds.

Result

Algorithm	Use Case	Notes
SHA-256	General purpose hashing, checksums	Fast, widely supported. With a salt, produces HMAC-SHA-256. Not ideal for password storage (use bcrypt instead).
SHA-512	Higher-security checksums, message authentication	With a salt, produces HMAC-SHA-512. Not the same as sha512crypt — use the sha512crypt option for `/etc/shadow`.
sha512crypt	Linux `/etc/shadow`	The $6$ crypt format — 5000 rounds of SHA-512 with salt. Equivalent to `openssl passwd -6` or `mkpasswd -m sha-512`. Computed entirely in your browser.
bcrypt	Password storage in applications	Intentionally slow, with built-in salt. For new projects, also consider Argon2.
MD5	Legacy systems, checksums	Do not use for security. Included for compatibility with older systems.

Want to learn more? Read our guide to how password hashing works -- covering the history and tradeoffs of each algorithm.