Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from any text or file. Everything runs in your browser — nothing is sent to any server.
A hash is a fixed-length string produced by a hash function from any input data. Hash functions are one-way — you can't reverse a hash to get the original data. Common uses include verifying file integrity (checksums), storing passwords securely, and generating digital signatures.
MD5 (128-bit) and SHA-1 (160-bit) are older algorithms now considered cryptographically broken — don't use them for security. SHA-256 (256-bit) and SHA-512 (512-bit) are from the SHA-2 family and remain secure for most uses. SHA-256 is the most widely used today.
No — MD5 is completely unsuitable for password hashing. It's extremely fast (making brute-force attacks trivial), has known collision vulnerabilities, and large rainbow tables exist for common passwords. Use dedicated password hashing functions like bcrypt, scrypt, or Argon2 instead.
Yes — our Hash Generator runs entirely in your browser. Your text and files never leave your machine. The Web Crypto API (SHA-256/SHA-512) and our built-in MD5 implementation both run client-side only.