Question 1

What is SHA-512?

Accepted Answer

SHA-512 is a cryptographic hash function from the SHA-2 family that produces a 512-bit (64-byte) hash value, rendered as a 128-character hexadecimal string.

Question 2

Is SHA-512 secure?

Accepted Answer

Yes. SHA-512 is considered cryptographically secure and is widely used in digital signatures, certificates, and blockchain applications.

Question 3

What is the difference between SHA-256 and SHA-512?

Accepted Answer

SHA-512 produces a longer 512-bit hash compared to SHA-256's 256-bit output. SHA-512 can be faster on 64-bit processors due to its use of 64-bit operations.

Question 4

Is my data sent to a server?

Accepted Answer

No. All hashing happens locally in your browser using the Web Crypto API. Your text never leaves your device.

Question 5

What format is the output?

Accepted Answer

The output is a 128-character lowercase hexadecimal string representing the 512-bit SHA-512 digest.

Question 6

Can I use SHA-512 for password hashing?

Accepted Answer

While SHA-512 is secure, dedicated password hashing algorithms like bcrypt or Argon2 are recommended for passwords because they include salting and are intentionally slow.

SHA-512 Hash Generator

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