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Table of contents
  1. Features
  2. Social Mentions


Jacksum is a free, open source, cross-platform, feature-rich, multi-threaded command line tool for calculating hash values, verifying data integrity, finding files by their fingerprints, and finding algorithms to hash values. 489 hash functions!

  • Open Source
  • Windows
  • Linux
  • Mac OSX

Jacksum Reviews and details

Screenshots and images

  • Jacksum Landing page
    Landing page //


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Questions & Answers

As answered by people managing Jacksum.
  1. What makes Jacksum unique?

    Jacksum (JAva ChecKSUM) is a free, open source, cross-platform, feature-rich, multi-threaded command line utility that makes hash functions available to you. It covers many types of use cases where hash values are needed:

    • Calculating of hash values of almost any input
    • Finding OK/failed/missing/new files (verify file/data integrity)
    • Finding files by their fingerprints for positive matching
    • Finding files that do not match certain fingerprints for negative matching
    • Finding all duplicates of a file by its hash value
    • Finding the algorithm(s) that generated a certain hash value

    In order to achieve the goals above Jacksum supports you with

    • 489 standard hash functions
    • Customizable CRCs from 1 to 64 bit width
    • 60+ options to control Jacksum's behavior on the command line
    • 14 standard encodings for representing hash values
    • 10 predefined styles for reading and writing files that contain hash values
    • 8600+ lines of manpage with descriptions, examples, and compatibility lists for the most common algorithms

    Jacksum is also a library. You can use it for your projects. It is written entirely in Java

  2. How would you describe your primary audience?

    Jacksum is for users with security in mind, advanced users, sysadmins, students of informatics, computer scientists, cybersecurity engineers, forensics engineers, penetration testers, white hat hackers, reverse engineers, CRC researchers, etc.

  3. Which are the primary technologies used for building your product?

    Java, a programming language for building robust cross platform software.

  4. Why should a person choose Jacksum over its competitors?

    It is free, open source, cross platform, multi-threaded, reliable, and it comes with a bunch of features, see also

  5. What's the story behind Jacksum?

  6. Who are some of the biggest customers of Jacksum?

Social recommendations and mentions

We have tracked the following product recommendations or mentions on various public social media platforms and blogs. They can help you see what people think about Jacksum and what they use it for.
  • Why are there no checksum apps for MacOS?
    Having said that I believe this is what you are looking for Or Https:// Https:// Https:// Source: over 1 year ago

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Jacksum discussion

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This is an informative page about Jacksum. You can review and discuss the product here. The primary details have been verified within the last quarter. So they could be considered up to date. If you think we are missing something, please use the means on this page to comment or suggest changes. All reviews and comments are highly encouranged and appreciated as they help everyone in the community to make an informed choice. Please always be kind and objective when evaluating a product and sharing your opinion.