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

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