Jacksum

Jacksum is a fast, multi-threaded command-line tool and Java library for calculating and verifying cryptographic hashes, checksums, and CRCs — 586 algorithms, one consistent interface. Whether you verify file integrity, automate security checks, hunt down duplicates, or work with rare and exotic algorithms — Jacksum makes hashing effortless on Windows, macOS, Linux, and even Android.
Homepage:	https://jacksum.net/en/index.html
Status:	Maintained ✅
Source Code:	https://jacksum.net/en/download.html#sourcecode
License:	Jacksum is free and open source software, released under the GPL-3.0 or later. It is OSI Certified Open Source Software — OSI Certified is a certification mark of the Open Source Initiative — and Free Software in the strong sense defined by the Free Software Foundation.
Cost:	free
Platforms:	Microsoft Windows, macOS and GNU/Linux, Android
Language:	English
Function:	Fixity
Content type:	Software

Description

Calculates hashes and fingerprints of almost any input: files, entire file trees, command line arguments, plain or encoded strings, the console, standard input, NTFS ADS, pipes, sockets, doors, partitions, and raw disks Pseudo random numbers, and reproducible, unique, secure passwords

Verify

Generate and persist check lists and wanted lists Verify data integrity — find files that are OK, failed, missing, or new Run a strict integrity verification, aka an audit

Find

Find files by their fingerprints (positive matching) Find files that don't match certain fingerprints (negative matching) Find every duplicate of a file by its hash value Find the algorithm(s) that produced an unknown hash value Investigate

Get detailed algorithm information — including whether an algorithm is considered broken Examine the polynomials of CRCs and the parameters of HMACs For complete, copy-and-paste recipes, see the Use Cases cookbook - https://jacksum.net/en/use_cases.html

Development Activity

See GitHub repo here for development history: https://github.com/jonelo/jacksum