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ZSNES vs Snes9x: catalog facts
ZSNES	Snes9x
Free Free and open source under the GPL-2.0 licence.	Free Free and open source under a non-commercial licence: the Snes9x licence permits free…
Linux	Windows, macOS, Linux
Classic ZSNES interface kept working on modern systems Available as a Flatpak	Very high compatibility with the SNES library, including cartridge enhancement chips Native builds for Windows, Linux (GTK and X11), FreeBSD and macOS
Less accurate emulation than newer SNES emulators A community fork rather than the original project	The licence prohibits commercial use, so it is not open source in the OSI sense Less cycle-accurate than bsnes or higan if exactness is your priority
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 21, 2026

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