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SHA512 Generator

SHA512 Generator produces a 512-bit SHA-512 digest from any text, shown as 128 lowercase hex characters. It runs on the browser's native Web Crypto API and recomputes live as you type — your input stays local.

SHA-512 is part of the same SHA-2 family as SHA-256 but with a larger output, and it is often faster on 64-bit hardware. It is an excellent choice for high-assurance integrity work.

SHA-512 hash (hex)
The SHA-512 digest will appear here.
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Hash length
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Input chars
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Input bytes

How to use SHA512 Generator

  1. 1

    Enter your text

    Type or paste any string. The input is UTF-8 encoded before hashing.

  2. 2

    Read the digest

    The 128-character hex SHA-512 appears instantly, along with input character and byte counts.

  3. 3

    Copy the result

    Toggle uppercase hex if your tooling expects it, then copy the digest with one click.

What is SHA-512?

SHA-512 is a SHA-2 hash that outputs a 512-bit value, written as 128 hex characters. It operates on 64-bit words and 1024-bit blocks, which makes it efficient on modern 64-bit processors.

Like SHA-256, it has no known practical collision or preimage attacks and is widely trusted for security-critical integrity checks.

SHA-512 vs SHA-256, and when not to use it

SHA-512's larger digest offers a wider security margin and can be faster than SHA-256 on 64-bit machines, though it produces bigger hashes and may be slower on 32-bit or embedded targets. For most applications either is an excellent, modern choice.

As with all general-purpose hashes, SHA-512 is too fast for password storage on its own — attackers can brute-force leaked hashes quickly. Use bcrypt for passwords, which is intentionally slow and salted.

Frequently asked questions

How long is a SHA-512 hash?
512 bits, displayed as 128 hexadecimal characters, regardless of input size.
Is SHA-512 more secure than SHA-256?
It has a larger output and wider margin, but both are considered secure today. SHA-512 can also be faster on 64-bit hardware.
Should I use SHA-512 for passwords?
No. Like other fast hashes it is unsuitable for password storage. Use bcrypt instead, which is deliberately slow and salted.

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