Hash Generator

Hashes are one-way fingerprints — they are not encryption.

One-way Security helpers

Algorithm

Includes SHA-256 and legacy MD5 (for checksums only).

InputUTF-8

Output

Encoding

Hash

—

Live digest MD5 is not for passwords bcrypt is salted

When to use what

SHA-256/SHA-512 for checksums and content fingerprints.
HMAC-SHA256 for message authentication (requires a secret).
bcrypt for passwords (slow + salted).

MD5 warning

MD5 is fast and collision-prone. Use it only for non-security checksums (like file integrity in trusted workflows), not for passwords, signatures, or security decisions.

bcrypt notes

Higher cost means slower hashing (better against brute force, but heavier for servers).
Hashes include their salt, so the same password produces different hashes.
Store only the bcrypt hash; verify with a password check routine.