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VMR vs aqua: catalog facts
VMR	aqua
Free Free and open source under the MIT licence.	Free Free and open source under the MIT licence, with GitHub Sponsors support.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Command line
One tool for many languages and SDKs Choice of terminal UI or plain CLI	Per-project tool versions from one config file Lazy installation when a tool is first run
Relies on its own cached version lists for available SDKs Smaller community than single-language managers like nvm or pyenv	Tools must be listed in its registry or defined by you Focused on CLI tools, not language runtimes or libraries
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT
No account needed	No account 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 October 2, 2026

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