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RetroArch Web Player vs OpenEmu: catalog facts
RetroArch Web Player	OpenEmu
Free The open-source software is available without a license fee.	Free The open-source application is available without a license fee.
Web	macOS
No installation at all; it runs in any modern browser Uses the same libretro cores as the desktop application	Native Mac library interface with artwork and metadata handled for you One controller configuration applies across every emulated system
Slower than native and limited to lighter systems Save handling and controller support are more fragile than the desktop app	macOS only Core updates depend on the OpenEmu team packaging them
Web application	Downloadable app
Open source	Open source
License not stated	License not stated
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.