md5sum is software that calculates and verifies 128-bit MD5 hashes, as described in RFC 1321.
The MD5 hash functions as a compact digital fingerprint of a file. As with all such hashing algorithms, there is theoretically an unlimited number of files that will have any given MD5 hash. However, it is very unlikely that any two non-identical files in the real world will have the same MD5 hash, unless they have been specifically created to have the same hash.
This is free and open source software that’s part of GNU Coreutils.
Website: www.gnu.org/software/coreutils
Support:
Developer: Ulrich Drepper, Scott Miller, David Madore
License: GNU General Public License v3.0
md5sum is written in C. Learn C with our recommended free books and free tutorials.
Related Software
| CLI Data Hashing Tools | |
|---|---|
| xxHash | Non-cryptographic hash algorithm |
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| md5sum | Compute and check MD5 message digest; part of GNU Coreutils |
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| 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 |
| Directory Checksum | Recursively calculate checksums for directory contents |
| paq | Fast BLAKE3 hashing tool for files and directories |
| ddgst | Hashing and checksum utility |
| QCalcFileHash | Hash calculator |
| hashdir | Checksum directories and files |
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| 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 |
| bitrat | Fast file checksum tool supporting multiple hash algorithms |
| b2sum | Calculate BLAKE2 checksums |
| Additional tools: | |
| hashit | Generate file hashes quickly |
| hashdeep | Generate and verify file hashes |
| cksfv | Create and check sfv listings using CRC32 checksums |
| cksfv.rs | Reimplements the classic cksfv tool |
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