This article spotlights alternative tools to cksum, a tool to compute and verify file checksums.

The software featured here is free and open source. All tools provide a command-line interface (CLI) unless otherwise stated.
| CLI Data Hashing Tools | |
|---|---|
| b3sum | Implementation of the BLAKE3 hash function |
| xxHash | Non-cryptographic hash algorithm |
| 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 |
| Hashrat | Hash-generation 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 |
| filepack | File hashing and verification |
| luha | Simple file checksum tool |
Are we missing any open source alternatives to cksum? Please let us know.
All the CLI tools in this series.
| Alternatives to CLI tools |
|---|
| age // awk // bc // cal // cat // cd // chmod // cksum // cloc // cmp // compress // cp // cron // curl // cut // date // dd // df // diff // dig // du // fdisk // file // find // free // ftp // grep // gzip // hexdump // history // jq // kill // less // locate // ls // lsof // make // man // more // mv / ping // ps // psql // rename // rm // sed // split // ssh // stow // strings // sudo // sysctl // tail // talk // tar // telnet // time // top // touch // traceroute // tree // uname // uniq // uptime // vi // watch // Wget // who // whois // xargs |
Explore our comprehensive directory of recommended free and open source software. Our carefully curated collection spans every major software category.This directory is part of our ongoing series of informative articles for Linux enthusiasts. It features hundreds of detailed reviews, along with open source alternatives to proprietary solutions from major corporations such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. You’ll also find interesting projects to try, hardware coverage, free programming books and tutorials, and much more. Know a useful open source Linux program that we haven’t covered yet? Let us know by completing this form. |

