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Nushell vs ksh 93u+m: catalog facts
Nushell	ksh 93u+m
Best for: Shell that pipes structured tables instead of untyped text	Best for: Maintaining KornShell scripts or using ksh as a daily shell
Free Free and open source under the MIT licence.	Free Free and open source.
Windows, macOS, Linux, Command line	macOS, Linux, Command line
Structured pipelines remove most text parsing from everyday shell work Identical behaviour on Windows, macOS and Linux	Keeps the original KornShell 93 alive with ongoing fixes Compatible with existing ksh93 scripts All 3 strengths for ksh 93u+m Keeps the original KornShell 93 alive with ongoing fixes Compatible with existing ksh93 scripts Published releases plus a development branch
Not POSIX compatible, so existing shell scripts do not run in it The language is still evolving and breaks between releases	Mainly distributed as source code Smaller community than Bash or Zsh
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Offline features available
Official website Full listing and sources Sources for Nushell nushell.sh github.com/nushell/nushell Catalog checked September 22, 2026	Official website Full listing and sources Sources for ksh 93u+m github.com/ksh93/ksh Catalog checked October 1, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.