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chruby vs ruby-build: catalog facts
chruby	ruby-build
Free Free and open source under the MIT license.	Free Free and open source under the MIT license.
macOS, Linux, Command line	Command line
Switches among installed Ruby versions in a shell Sets RubyGems paths and related environment variables	Installs any listed Ruby version into a chosen prefix Supports CRuby and other implementations
Supports Bash and Zsh only Does not install Ruby versions	Must be upgraded to learn about new Ruby releases Compiles from source, which takes time
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT
Not stated if an account is needed	No account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.