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UPM vs Pixi: catalog facts
UPM	Pixi
Free Free and open source.	Free The open-source application is available without a license fee.
Windows, Linux, Command line	Windows, macOS, Linux
One command set for several language ecosystems Builds on each language's existing package tools	Cross-platform environments with lock files
Supports a limited set of languages Mainly shaped around Replit's own needs	Available packages depend on configured package channels.
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: BSD-3-Clause
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.