Jacksum

A free cross-platform command-line tool and Java library for calculating and verifying 586

Written entirely in Java, Jacksum behaves identically across platforms without recompilation. It covers calculating hashes of files, file trees, strings, streams, and platform-specific inputs; generating and verifying check lists and wanted lists; finding duplicates or identifying unknown hash algorithms; and gathering algorithm information. It also supports generating pseudo random numbers and reproducible passwords from a master password.

4 alternatives to Jacksum

Ranked by how well each tool replaces Jacksum: shared features, audience, price and popularity.

Md5Checker
Free lightweight tool to calculate and verify MD5 checksums for multiple files.
Covers 0 of 15 key features.
Free plan
52 out of 100 matchFree
hashcat
World's fastest and most advanced password recovery utility
Covers 0 of 15 key features.
Free planOpen source
49 out of 100 matchFree
CHK Checksum Utility
Advanced file hashing and verification tool with a simple interface and portable design.
Covers 0 of 15 key features.
Free plan
49 out of 100 matchFree
AppleJack
Menu-based troubleshooting assistant for Mac OS X.
Covers 0 of 15 key features.
Free planOpen source
43 out of 100 matchContact sales

Key facts

Starts at: Free
Free plan: Yes
Free trial: No
Open source: Yes
Founded: 2001

What it does

586 algorithms including cryptographic hash functions hash trees non cryptographic hash functions crcs and classic checksums
Hmac support for 492 algorithms with optional truncation
Customizable crcs from 1 to 64 bit width using the rocksoft model crc algorithm
70 command line options
Multi threading for parallel hash calculations and parallel data reads
Recursive traversal with depth control symbolic link policies and file system cycle detection
19 predefined styles for reading and writing check files and wanted lists
17 encodings for representing hash values
6 predefined formats for file timestamps plus custom formats
170 plus character sets for correct reading and writing of check files
Fully customizable output format
Concatenated algorithms to calculate multiple algorithms in one pass
Algorithm filtering by digest width or name substring
Unknown hash algorithm identification given input and hash value
File list input support with wildcard support depending on shell platform specific input support including ntfs ads block devices sockets solaris doors and windows partitions disks full unicode file name support with configurable charsets and bom handling handling of special characters maximum file name and path lengths and files up to 8 exbibytes command line interface for scripting in shell scripts cronjobs ci pipelines or ai agents java library api for use in other projects graphical user interface via hashgarten with drag and drop file browser integration for finder windows file explorer and many linux file managers 10 000 plus lines of manpage documentation with examples and compatibility lists

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4 alternatives to Jacksum

Md5Checker

hashcat

CHK Checksum Utility

AppleJack