SHA-512 Hash Generator
Generate SHA-512 hashes instantly using the Web Crypto API. Free online SHA-512 hash generator producing 128-character hex digests. Runs entirely in your browser.
Frequently Asked Questions
What is SHA-512?
SHA-512 is a member of the SHA-2 family that produces a 512-bit (128-character hex) hash digest. It provides an even larger output than SHA-256 and is often preferred on 64-bit systems where it can be faster than SHA-256 due to native 64-bit arithmetic.
When should I use SHA-512 over SHA-256?
Use SHA-512 when you need a larger hash output for higher collision resistance, or when running on 64-bit systems where SHA-512 can be faster. SHA-512 is common in digital signatures, certificate authorities, and high-security applications.
Is SHA-512 slower than SHA-256?
On 64-bit systems, SHA-512 is often faster than SHA-256 because it uses 64-bit arithmetic natively. On 32-bit systems, SHA-256 is typically faster. This browser-based tool uses the Web Crypto API which optimizes for your hardware.
How many characters is a SHA-512 hash?
A SHA-512 hash is 128 hexadecimal characters long (512 bits). This is twice the length of SHA-256 (64 hex characters) and over three times longer than MD5 (32 hex characters).
Is this tool free?
Yes. All KappaKit tools are free, run in your browser, and require no signup or account.