SHA-256 manifest
For a file containing just the three bytes abc, the digest starts ba7816bf and ends f20015ad. Adding a newline produces a different result.
BIG Seller toolboxSHA-256 file checksum generator
Fingerprint a digital download with SHA-256. Compare it with a checksum from a trusted source to see whether the two files have exactly the same contents.
Quick start
How to use it
- Choose a file from the delivered package.
- Optionally paste a 64-character SHA-256 checksum from the publisher.
- Compare the result or download a checksum manifest for your release.
Tool notes
Frequently asked questions
A filename can stay the same across several releases; a checksum describes the bytes. Publish the expected value through a trusted channel. A matching hash is useful for checking integrity but cannot establish who created the file.
Will renaming the file change its SHA-256?
No. A change to the filename alone does not change the bytes being hashed.
Is this a malware scanner or a digital signature?
Neither. It checks a fingerprint. It does not inspect the contents for malware or verify the identity of a publisher.
Is a zip file’s checksum the same as a file inside it?
No. The ZIP has its own bytes, metadata and headers. Compare the checksum for the exact item you downloaded.
