sum is a simple and concurrent CLI file hashing tool.

• Simple.
• Concurrent file processing - each file is processed in its own goroutine (thread).
• Ability to calculate union (composite) checksum.
• HMAC (keyed hash) support.
• Glob patterns support.

-m - specify hash function.

Currently supported:

-u - calculate union (composite) hash - a sum of multiple files combined.

-k - switch to hmac mode and use the provided key.

sum data.txt
# aa3ec16e6acc809d8b2818662276256abfd2f1b441cb51574933f3d4bd115d11  data.txt

sum -m blake3 data.txt
# c7a4b65f79934d742ea07a9e85b3bbb1ab9ad9f42033d8a0698495d0f564c804  data.txt

sum -m md5 data.txt file2.png bin.exe
# 764569e58f53ea8b6404f6fa7fc0247f  data.txt
# 79695d7d0054d14d68b513ed997f7946  file2.png
# 65e3dd724be2affbda44084e213ea63a  bin.exe

sum -m xxh3 -u data.txt file2.png bin.exe
# cef94edd97ad53f0 (3 files)

sum -u ./*
# 725c4620f52355d3760e1382565cbb5e6033e8eece68a92ee68affd534053751  (5 files)

The following install options are available:

Prebuilt binaries are available for Windows, Linux, and macOS (both x86 and ARM): download the latest release from the releases page for the desired OS.

If you have Go installed, the simplest way to get sum is to run:

go install github.com/70sh1/sum@latest

sum is available as a part of 70sh1's scoop bucket. To install, you first need to add the bucket:

scoop bucket add jug https://github.com/70sh1/jug

After that, run:

scoop install sum

Alternatively, if you don't want to add the bucket, you can run this:

scoop install https://raw.githubusercontent.com/70sh1/jug/refs/heads/master/bucket/sum.json

zeebo/blake3 - blake3 implementation.

zeebo/xxh3 - xxh3 implementation.