SHA-512 Hash Generator
SHA-512 is the 512-bit member of the SHA-2 family and emits a 128 hex character digest. Internally it operates on 64-bit words, which makes it notably fast on modern 64-bit CPUs while offering a very large output space.
Use SHA-512 when you want a long, collision-resistant digest for integrity verification, key derivation inputs, or signature schemes that call for it. The hash below is computed by your browser's Web Crypto API and never leaves your device.
| Property | Value |
|---|---|
Digest size | 512 bits (64 bytes) |
Hex length | 128 characters |
Block size | 1024 bits |
Word size | 64-bit |
Family | SHA-2 |
hello→9b71d224bd62f3785d96d46ad3ea3d73319bfbc2890caadae2dff72519673ca72323c3d99ba5c11d7c7acc6e14b8c5da0c4663475c2e5c3adef46f73bcdec043SHA-512 of "hello" produces a full 128-character hex string.
Frequently asked questions
Is SHA-512 more secure than SHA-256?
Both are considered secure with no practical attacks. SHA-512 has a larger output and works on 64-bit words, so it can be faster on 64-bit hardware and gives a bigger security margin, but SHA-256 is sufficient for almost all uses.
Why is a SHA-512 hash so long?
It outputs 512 bits. In hexadecimal that is 128 characters, since each hex digit encodes 4 bits. The length is constant regardless of input size.
Should I use SHA-512 for password storage?
No. Plain SHA-512 is too fast for password storage. Use a deliberately slow, salted algorithm such as Argon2, bcrypt, or scrypt to resist brute-force attacks.
Does this tool run offline and privately?
Yes. SHA-512 is computed in your browser via the Web Crypto API, with no network request, so your text remains private.