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asdf vs Fast Node Manager: catalog facts
asdf	Fast Node Manager
Free Free and open source under the MIT licence.	Free The open-source application is available without a license fee.
macOS, Linux, Command line	Windows, macOS, Linux
One tool and one .tool-versions file replaces nvm, rbenv, pyenv and friends Plugin ecosystem covers hundreds of runtimes and CLI tools	Supports common project version files
Shim indirection adds startup latency and occasionally confuses tooling Plugin quality varies since each is community-maintained	Automatic version switching requires shell setup.
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0
Not stated if an account is 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 September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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