Calculates SHA-256 and SHA-512 hashes using the Web Crypto API.
Enter text or upload file. Pick algorithm (MD5, SHA-1, SHA-256, SHA-512). Hash appears instantly. Copy.
Hash for file integrity, passwords, signatures. No command-line tools needed.
Fixed-length string from input; same input = same hash; irreversible.
SHA-256 recommended; MD5/SHA-1 weak; SHA-512 strongest.
Generate and compare to expected hash.
No, local processing only.