Checksum Utility Icon

Checksum Utility

Checksum Utility calculates and compares single checksums (also known as hash values) on your Mac.

 

 

Why checksums are useful

  • Is my backup working? Compare a file with it’s backup.
  • Is my harddisk damaged? Compare a file with it’s checksum from a year ago.
  • Is my RAM corrupt? Compare an important file with it’s duplicate.
  • Is this downloaded file compromised? Compare a file with it’s checksum on a webpage.

Features

  • Supported checksum algorithms:
    CRC 32, MD5, SHA 1 and MD2, MD4, SHA 2: SHA 224, SHA 256, SHA 384 and SHA 512.
  • Save a calculated checksum as .checksum file.
  • Compare a file on disk, a .checksum file and a manually entered checksum in any combination.
  • Guesses what algorithm a given checksum might be created with.
  • You can test the correctness of Checksum Utility with zero-length checksums on your own.
  • Substantial in-app help to let you know, what to do.
  • Supports drag and drop.
  • Checksums can be copied and pasted.
  • 100% hand crafted native Mac application.

Checksum Utility is made to calculate single checksums. If you need to calculate the checksums of a whole folder or want to compare two folders, then Checksum Folders is for you.

New in this version (1.1.0)

  • New and very efficient computation model.
  • Very low memory usage for most algorithms.
  • Shows the progress during the calculation of large files.
  • Calculation of large files can now be interrupted.
  • Several bugfixes.
  • The usage with Yosemite has been optimized.

Buy

Checksum Utility is available in the Mac App Store.

MacAppStoreEn

 

 

Screenshots

Compare a file with a .checksum file.

Compare a file with a .checksum file.

Now you can interrupt the calculation of a checksum.

Now you can interrupt the calculation of a checksum.

Let Checksum Utility guess the type of checksum.

Let Checksum Utility guess the type of checksum.

Two files are the same.

Two files are the same.