Hash Generator

Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes instantly. Useful for integrity checks and content fingerprinting.

Generate cryptographic hashes online, sHA-1, SHA-256, SHA-384, SHA-512. Verify file integrity, generate content fingerprints. 100% client-side, your data never leaves your browser.

Frequently asked questions

What is a cryptographic hash used for?

Hashes are one-way functions that map any input to a fixed-size string. They're used to verify data integrity (same input → same hash), fingerprint content, generate deterministic IDs, and as building blocks inside signatures and password storage.

Which hash algorithm should I use?

For integrity checks on modern systems, use SHA-256 or SHA-512; they are fast, widely supported and considered secure. Avoid MD5 and SHA-1 for any new security-sensitive application; they are broken for collision resistance.

Is hashing the same as encryption?

No. Hashing is one-way. You cannot recover the original input from the hash. Encryption is two-way, with the key, ciphertext can be decrypted back to plaintext. Hashes are used for verification, encryption for confidentiality.

Why do two identical files sometimes produce different hashes?

Trailing newlines, invisible characters, line-ending differences (CRLF vs LF) or encoding differences (UTF-8 with/without BOM) change the bytes and therefore the hash. Always compare the exact bytes, not the visible content.

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