SHA-512 Hash Calculator
Generate a SHA-512 checksum for any file, straight in your browser.
[1] SELECT FILE(S) TO HASH
Select one or multiple files to hash from your system, or drag and drop files below
[2] CHOOSE YOUR HASH FUNCTION
[3] LAUNCH THE HASHING PROCESS
What is SHA-512?
SHA-512 is the widest member of the SHA-2 family in common use, producing a 512-bit value written as 128 hexadecimal characters. It is specified in FIPS 180-4 alongside SHA-256 and shares the same design.
OUTPUT: 512-bit — 128 hexadecimal characters
STATUS: Recommended — no known practical attacks
Is SHA-512 secure?
SHA-512 has no known practical collision or preimage attacks. Because its internal operations are 64-bit, it frequently outruns SHA-256 on modern 64-bit processors despite producing a longer digest.
When to use SHA-512
- ›Large archives where 64-bit throughput helps
- ›Environments with a policy requiring a digest longer than 256 bits
- ›Long-term archival records and evidence preservation
- ›Linux distribution images, which often publish SHA-512 sums
SHA-256 is more widely published and easier to compare against a vendor's stated checksum.
How to verify a file with SHA-512
- Select the file above. SHA-512 is already chosen for you.
- Press [CALCULATE HASH] and wait for the digest.
- Compare it against the 128-character checksum published by whoever gave you the file.
- Every character must match. A single difference means the file is not the one that was published.
Hashing several files at once works too — select them all and export the results as CSV or as a PDF verification report for an audit trail.
SHA-512 FAQ
How long is a SHA-512 hash?
A SHA-512 hash is 512 bits, displayed as 128 hexadecimal characters — twice the length of a SHA-256 hash.
Is SHA-512 more secure than SHA-256?
It offers a larger security margin on paper, but SHA-256 has no practical attacks either. For nearly all file integrity work the two are equally sound; pick whichever your counterpart publishes.
Is SHA-512 slower than SHA-256?
Usually the opposite on 64-bit hardware. SHA-512 works on 64-bit words, so it often hashes large files faster than SHA-256 despite the longer output.
Does this SHA-512 calculator upload my file?
No. The digest is computed in your browser and the file is never transmitted.