Alternatives to Fast Sum for all platforms with any license

  • HashCheck Shell Extension icon

    HashCheck Shell Extension

    File-integrity verification with CRC-32, MD5, and SHA-1, integrated into Windows file-properties dialog box.

    Open Source Windows Windows Explorer

    No features added Add a feature
  • Hashtab icon

    Hashtab

    Fast and Simple. Users in over 200 countries have downloaded HashTab to use as a simple MD5 checker or for a more advanced file integrity check.

    Free Personal Mac Windows Windows Explorer Finder

  • HashMyFiles icon

    HashMyFiles

    HashMyFiles is small utility that allows you to calculate the MD5 and SHA1 hashes of one or more files in your system.

    Free Windows

    No features added Add a feature
  • FileVerifier++ icon

    FileVerifier++

    FileVerifier++ is a Windows application for verifying the integrity of files. FileVerifier supports various algorithms by means of dynamically loadable hash libraries. It uses the Windows API and doesn't have any dependencies...

    Open Source Windows

    • Discontinued The project is no longer developed. Last version, 0.6.3.5830, released in May 2010, can be still downloaded from SourceForge.
  • CHK Checksum Utility icon

    CHK Checksum Utility

    CHK is an advanced checksum utility — a simple application designed to help you verify the integrity of your files, find duplicates and much more!.

    Free Windows

    No features added Add a feature
  • dsSHA

    dsSHA is a SHA1 hash-calculator. The beauty of this is its simplicity, tiny size (7KB) and ease of use. There is no interface: just drag and drop a file on to this program or its shortcut and the SHA1 value of the file appears in a...

    Free Windows

    No features added Add a feature
    • Discontinued The program is no longer updated. Last version, 1.0.2, released in 2004, can be still downloaded from the official website.
  • dsMD5 icon

    dsMD5

    dsMD5 is a MD5 hash-calculator. The beauty of this is its simplicity, tiny size (6KB) and ease of use. There is no interface: just drag and drop a file on to this program or its shortcut and the MD5 value of the file appears in a...

    Free Windows

    • Discontinued The program is no longer updated. Last version, 1.0.2, released in 2004, can be still downloaded from the official website.

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