SHA-512 Hash & File Checksum
Calculate SHA-512 for UTF-8 text or local files, compare a full 128-character checksum and copy the result. Includes an abc test vector and file verification tips.
Your result will appear here.
How to calculate and compare SHA-512
- Enter text or select a local file; the selected file takes priority.
- Paste only the expected SHA-512 digest if you want to compare a checksum.
- Calculate and check the result, then copy or download all 128 characters.
Working with SHA-512 Hash & File Checksum
SHA-512 produces a 512-bit digest shown as 128 hexadecimal characters. Changing a file’s contents changes its digest. The filename is not included in the calculation.
SHA-512 example: the standard abc test vector
- Input
abc- Result
ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f
Questions about SHA-512 Hash & File Checksum
Why is a SHA-512 result 128 characters long?
SHA-512 produces a 512-bit digest, represented here by 128 lowercase hexadecimal characters, including leading zeros. Text uses UTF-8; files use their exact bytes. Browser processing is limited to 8 MiB of text or 32 MiB per file.
Is SHA-512/256 just a shortened SHA-512?
No. SHA-512/256 uses different initial values, so its result is not simply the first 64 hexadecimal characters of a SHA-512 digest. SHA-384 and SHA3-512 are also separate algorithms. This page calculates full SHA-512; use the SHA-256 tool if that is the algorithm your source specifies.
How do I check a file, and why might the hashes differ?
Select the file and paste only the expected hash, without its filename or SHA512: prefix. Comparison ignores letter case and surrounding whitespace. The actual input is not trimmed or normalized: spaces, CRLF versus LF, a final newline, UTF-8 BOM and Unicode representation can change the digest. File names and paths are excluded.
Does a matching SHA-512 prove authenticity? Can it be decrypted?
A match helps check integrity only if the expected digest comes from a trusted source. Plain SHA-512 does not authenticate the sender or verify a digital signature, and it is not reversible encryption. Use HMAC-SHA-512 in the HMAC tool for keyed message authentication and a dedicated scheme such as Argon2id for password storage.
Are my files, tokens or text uploaded?
No. These tools process your input in your browser. The website serves the page and its code, but your input is not sent to a conversion server or saved in an account.
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