Jacksum is data integrity software for working with checksums, CRCs, and message digests (hashes).
Jacksum supports 477 algorithms, including the most common cryptographic and non-cryptographic hash functions. Jacksum also supports the “Rocksoft ™ Model CRC Algorithm” to describe CRCs, so additional 1.0399*10^267 customized CRCs can be used.
Jacksum can recursively compute hashes with multiple algorithms simultaneously. Jacksum takes advantage of modern multi-processor/multi-core environments, and saves time by hashing multiple files in parallel.
Jacksum can perform a verification of hashes against a set of known hashes, and it can detect matching, non-matching, missing, and new files.
This is free and open source software.
Key Features
- 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.
Website: jacksum.net
Support: GitHub Code Repository
Developer: Johann N. Löfflmann
License: GNU General Public License v3.0
Jacksum is written in Java. Learn Java with our recommended free books and free tutorials.
Related Software
| CLI Data Hashing Tools | |
|---|---|
| xxHash | Non-cryptographic hash algorithm |
| b3sum | Implementation of the BLAKE3 hash function |
| RHash | Calculate and verify magnet links and various message digests |
| md5sum | Compute and check MD5 message digest; part of GNU Coreutils |
| cfv | Test and create checksum files |
| Jacksum | Work with checksums, CRCs, and message digests |
| md5 | Generate / check MD5 message digest |
| digup | Update md5sum or shasum digest files |
| cksum | Compute and verify file checksums |
| Hashrat | Hash-generation utility |
| ddgst | Hashing and checksum utility |
| QCalcFileHash | Hash calculator |
| hashdir | Checksum directories and files |
| Hash Calculator | Calculates around 50 cryptographic hashes of strings and files |
| dano | Hashdeep/md5tree for media files |
| sha3sum | Keccak, SHA-3, SHAKE, and RawSHAKE checksum utilities |
| luha | Simple file checksum tool |
| filepack | File hashing and verification |
| b2sum | Calculate BLAKE2 checksums |
Read our verdict in the software roundup.
| CLI Data Hashing Tools | |
|---|---|
| xxHash | Non-cryptographic hash algorithm |
| b3sum | Implementation of the BLAKE3 hash function |
| RHash | Calculate and verify magnet links and various message digests |
| md5sum | Compute and check MD5 message digest; part of GNU Coreutils |
| cfv | Test and create checksum files |
| Jacksum | Work with checksums, CRCs, and message digests |
| md5 | Generate / check MD5 message digest |
| digup | Update md5sum or shasum digest files |
| cksum | Compute and verify file checksums |
| Hashrat | Hash-generation utility |
| ddgst | Hashing and checksum utility |
| QCalcFileHash | Hash calculator |
| hashdir | Checksum directories and files |
| Hash Calculator | Calculates around 50 cryptographic hashes of strings and files |
| dano | Hashdeep/md5tree for media files |
| sha3sum | Keccak, SHA-3, SHAKE, and RawSHAKE checksum utilities |
| luha | Simple file checksum tool |
| filepack | File hashing and verification |
| b2sum | Calculate BLAKE2 checksums |
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