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Checksum utility written in Java

Jacksum is a free checksum utility written entirely in Java. It can be used for computing and verifying checksums, CRCs and hashes as well as timestamps of files. It supports most common checksum algorithms (Adler32, BSD sum, POSIX cksum, CRC-16, CRC-32 (FCS-32), CRC-64, ELF-32, eMule/eDonkey, FCS-16, HAVAL (3/4/5 passes, 128/160/192/224/256 bits), MD2, MD4, MD5, MPEG-2's CRC-32, RIPEMD-128, RIPEMD-160, SHA-1, SHA-256, SHA-384, SHA-512, TIGER, Unix System V sum, sum8, sum16, sum24, sum32, Whirlpool and xor8).


User FAQ available in HTML format from http://www.jonelo.de/java/jacksum/index.html#FAQ

Related Projects



Verified by

Verified on


Verified by

Janet Casey

Verified on

8 November 2002

Leaders and contributors

Johann Nepomuk Loefflmann Maintainer

Resources and communication

AudienceResource typeURI
Bug TrackingVCS Repository Webviewhttp://sourceforge.net/tracker/?group_id=74387
Bug Tracking,Developer,SupportE-mailmailto:jonelo@jonelo.de
Debian (Ref)https://tracker.debian.org/pkg/jacksum
Savannah (Ref)https://savannah.nongnu.org/projects/jacksum

Software prerequisites

Required to useJava2 SDK 1.3 or later *or* JRE 1.3.1 or later (1.4.2 or later recommended)
Required to buildJava2 SDK 1.3 or later

This entry (in part or in whole) was last reviewed on 20 February 2018.


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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

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