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g vs asdf: catalog facts
g	asdf
Free Free and open source under the MIT licence.	Free Free and open source under the MIT licence.
Windows, macOS, Linux, Command line	macOS, Linux, Command line
Switches Go versions with a single command Works on Linux, macOS and Windows	One tool and one .tool-versions file replaces nvm, rbenv, pyenv and friends Plugin ecosystem covers hundreds of runtimes and CLI tools
Command-line only Master branch may be unstable; use tagged releases	Shim indirection adds startup latency and occasionally confuses tooling Plugin quality varies since each is community-maintained
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 22, 2026

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