Free SHA-256 / SHA-512 Hash Generator
Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text instantly. Free and private — all hashing runs in your browser, nothing is uploaded.
About this tool
Hashing turns any input into a fixed-length fingerprint — useful for verifying file integrity, comparing values without storing the original, and checking that a download wasn't tampered with. This free hash generator computes SHA-1, SHA-256, SHA-384 and SHA-512 digests of any text instantly, using the browser's native Web Crypto implementation so nothing you type is uploaded.
SHA-256 and above are the modern standard; SHA-1 is included for compatibility but is considered broken for security purposes. Note that general-purpose hashes are not suitable for storing passwords — for that you need a slow, salted algorithm like bcrypt, scrypt or Argon2. This tool is for integrity checks and development, all running locally.
Frequently asked questions
Which hash algorithm should I use?
Use SHA-256 or stronger for integrity and fingerprinting. Avoid SHA-1 for anything security-sensitive — it has known collision weaknesses. The tool offers SHA-1 only for legacy compatibility.
Can I use this to hash passwords?
No. Fast general-purpose hashes like SHA-256 are unsuitable for password storage because they're easy to brute-force. Use a deliberately slow, salted algorithm such as bcrypt, scrypt or Argon2 instead.
Is my input sent anywhere?
No. Hashing is done locally with the Web Crypto API in your browser; the text you enter never leaves your device.