Windows · Free download · System

Jacksum1.7.0

Jacksum : A cross-platform software application for calculating and verifying a wide range of checksum algorithms, CRCs and message digests

Operating system
Windows 10/11
File size
436 KB
License
GNU Public License
Last updated
May 1, 2026

106 downloads·666 page views

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Overview

What is Jacksum?

Jacksum : A cross-platform software application for calculating and verifying a wide range of checksum algorithms, CRCs and message digests

In depth

A closer look at Jacksum

Checking a file’s hash value is the most convenient way to make sure it has not been tampered with, either by malware or an ill-intentioned person.Jacksum is one of the apps you can turn when you want to not only verify checksums but also generate them.

A command-line tool for tech-savvy users

Since this utility is based on Java, it can be run on several platforms without any issue or difference in functionality, making it ideal for those who work on several computers with different OSes.However, this is a command-line tool, which means that expert users will be able to benefit from its features. For example, rather than run the JAR file, as is usually the case with Java-based apps, you need to look for and access the BAT file.

Choose the checksum type and the file of interest

It needs to be mentioned that you can get a very detailed presentation of all the supported algorithms by entering a dedicated command (-h en). Not only does it show the name and type, but also the length and a brief comment.Considering the many types of algorithms Jacksum supports, you first need to select the file you are interested in. Next, you need to specify the full path to the file you want to generate the hash for and it will be instantly displayed. Alternatively, you can calculate the checksum for a user-defined string of text.

Customize the output format

Before Jacksum calculates the checksums for your selected file, you can take some time and customize the output string. As such, assuming you are familiar with the commands, you can add separators, file size info and a timestamp, in addition to the actual checksum and the file’s name.All in all, Jacksum can be the go-to solution for all those who prefer command-line tools when it comes to generating checksums. Nonetheless, you need to be familiar with the syntax to make the most of this app.

Requirements

System requirements

Unix / Windows All

Verdict

Should you download Jacksum?

Jacksum runs on Windows 10/11 and is available under the GNU Public License license — the installer is 436 KB. We’ve catalogued it under System.

Verified clean. Every Jacksum build on SoftLookup is scanned for viruses, spyware, adware, trojans and backdoors. We re-test on every update.
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At a glance

Jacksum specifications

Category
System
Publisher
Johann Nepomuk Loefflmann
Last updated
May 1, 2026
Requirements
Unix / Windows All
License
GNU Public License
Operating system
Windows 10/11
File size
436 KB
Price
Free
Page views
666

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