Cram
Multi-format archive tool, 6-11x faster than 7-Zip
What it does
One command for zip, 7z, tar.*, ISO, RAR and its owncram format: list, extract, create, test, mount, sign. It uses every core, which most archivers don't. Creating 2.8GB / 42,151 files: 6.95s against 7-Zip's 68.25s, 13.4% smaller. Azip extracts in 1.89s against 7.21s.cram stores repeated data once across files, not just whole duplicates. Where it loses: little duplication means 9-19% larger than 7-Zip, and it costs memory. The corpus is a public download. MIT/Apache-2.0. GUI is paid.
Software published by Nexal IT — coming soon.
One tool to list, extract, create, test, convert and mount archives. It also signs files, builds recovery sidecars and finds duplicates across your drives. Free, with nothing held back. Every engine feature is in it, and will stay in it. curl -fsSL https://raw.githubusercontent.com/lukr54/cram/main/install.sh | sh 02 Cram Studio — graphical interface The same engine, with an interface. Free to download. Some features are reserved for Pro. One-time payment, no subscription. The command line is unaffected. The native format stores repeated data once and repacks JPEGs losslessly. Creating an archive from 2.8 GB and 42,151 files, on a 24-thread Ryzen 9 5900X. Each tool at its own default…from nexalit.fr
Does the same job
all alternatives →
- CDCompressed directories on Linux2017 · excamera.com · ▲70
- ACA "Cram tests" script for windows shellsNov 2025 · github.com · ▲6
It's quite limited but does the job, I invite anybody not aware of what cram tests are to give them a try, being on Unix with the original cram or Windows with this one ;)
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