Generate SHA-256, SHA-1 and SHA-512 cryptographic hashes
Built & maintained by Pappu Venkata Subbi Reddy, founder of Clacify
Clacify's Hash Generator computes SHA-256, SHA-1, and SHA-512 cryptographic hashes for any text input — all processed locally in your browser using the Web Crypto API. Use it to verify file integrity checksums, hash test passwords during development, create content fingerprints, or generate unique identifiers from text. Note: for production password storage, use bcrypt, Argon2, or scrypt instead of raw SHA hashes.
SHA-256 is a widely used cryptographic hash function that produces a fixed 256-bit (64-character hex) output from any input. It is used for verifying file integrity (checksums), in blockchain (Bitcoin mining), SSL certificate fingerprints, signing JWTs, and as a building block in many security protocols.
SHA-256 alone is not recommended for password storage because it is too fast — attackers can test billions of SHA-256 hashes per second using GPUs. For password storage, use purpose-built slow hash functions: bcrypt, Argon2id, or scrypt. These include a salt and are deliberately slow to make brute-force attacks impractical.