Password Hasher

Hash text with SHA-256, SHA-512, and SHA-1 — 100% in your browser

Your passwords are generated entirely in your browser. Nothing is ever sent to a server or stored anywhere.

Frequently Asked Questions

What is password hashing?

Hashing is a one-way function that converts text into a fixed-length string of characters. Unlike encryption, hashing cannot be reversed. Websites store password hashes instead of plaintext passwords — if a database is breached, attackers only get hashes, not actual passwords.

Which hash algorithm should I use?

For general-purpose hashing, SHA-256 is the standard. SHA-512 provides a longer hash and slightly more security. SHA-1 is considered deprecated for security purposes but is still used for checksums. For password storage, specialized algorithms like bcrypt or Argon2 are preferred.

Can a hash be reversed?

No. Cryptographic hash functions are designed to be one-way. You cannot determine the original input from its hash. However, attackers can use rainbow tables or brute force to find inputs that produce a given hash, which is why strong passwords matter.