Hash Generator

Frequently Asked Questions

What is a cryptographic hash?

A hash function takes any input and produces a fixed-length output (the digest). The same input always produces the same hash, but even a tiny change to the input produces a completely different hash. Hashes are one-way — you cannot reverse the digest to recover the original input.

Which hash algorithm should I use?

For file integrity checks, SHA-256 is the modern standard. For password storage, do not use any of these algorithms directly — use a dedicated password hashing function like bcrypt, scrypt, or Argon2, which are designed to be slow and resistant to brute-force. MD5 and SHA-1 are considered cryptographically broken for security purposes.

What is MD5 still used for?

MD5 is commonly used as a non-cryptographic checksum to verify file downloads haven't been corrupted in transit — not for security. Many CDNs and download pages publish MD5 checksums alongside files for this purpose.

Is my input sent to a server?

No. All hashing is performed entirely in your browser using the Web Crypto API. Your text never leaves your device.

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