SHA-512 Hash Generator
This SHA-512 generator computes 512-bit digests from text or files without uploading anything. SHA-512 is preselected when the page opens, so pasting input shows the 128-character hex hash immediately; HMAC keying, uppercase output, and file hashing are available in the same panel. SHA-512 is the largest standard member of the SHA-2 family and is widely used for high-security signatures, integrity checks, key derivation, and HMAC, especially on 64-bit systems where its 64-bit word operations are fast. The result is deterministic: the same bytes always produce the same digest, while any change flips roughly half the output bits. Everything runs in JavaScript locally, so sensitive values never leave your device. Copy or download each digest instantly.
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How to use this tool
Overview
This SHA-512 generator computes 512-bit digests from text or files without uploading anything. SHA-512 is preselected when the page opens, so pasting input shows the 128-character hex hash immediately; HMAC keying, uppercase output, and file hashing are available in the same panel. SHA-512 is the largest standard member of the SHA-2 family and is widely used for high-security signatures, integrity checks, key derivation, and HMAC, especially on 64-bit systems where its 64-bit word operations are fast. The result is deterministic: the same bytes always produce the same digest, while any change flips roughly half the output bits. Everything runs in JavaScript locally, so sensitive values never leave your device. Copy or download each digest instantly.Formula
SHA-512: 512-bit hash value (128 hex characters)Frequently asked questions
What is SHA-512 used for? +
SHA-512 provides 512-bit digests for high-security signatures, integrity checks, and key derivation, and is common in TLS, disk-encryption metadata, and HMAC flows.
Is SHA-512 slower than SHA-256? +
On 64-bit processors SHA-512 is often as fast or faster, because it works with 64-bit words. On constrained 32-bit devices SHA-256 can be quicker.
How long is a SHA-512 hash? +
512 bits, displayed as 128 hex characters. SHA-512/256 and SHA-512/224 are separate truncated variants with their own initial values, not just shorter output.
What hash algorithms does the tool support? +
This tool supports MD5, SHA-1, SHA-256, SHA-384, SHA-512, and other common cryptographic hash functions.
Can I hash files as well as text? +
Yes. Paste text directly or upload a file and the tool generates the hash for the content.
Are hashes generated in the browser? +
Yes. All hashing happens locally in your browser. Your data is never sent to any server.
What is the difference between MD5 and SHA-256? +
MD5 produces a 128-bit hash and is considered cryptographically broken. SHA-256 produces a 256-bit hash and is currently secure. Use SHA-256 for security purposes.