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jgenesis vs Snes9x: catalog facts
jgenesis	Snes9x
Free Free to download from GitHub.	Free Free and open source under a non-commercial licence: the Snes9x licence permits free…
Windows, Linux, Web	Windows, macOS, Linux
Several Sega consoles plus the SNES in one emulator Runs in a browser through WebAssembly	Very high compatibility with the SNES library, including cartridge enhancement chips Native builds for Windows, Linux (GTK and X11), FreeBSD and macOS
macOS is not officially supported Smaller project than the established multi-system emulators	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, Web application	Downloadable app
Closed source	Closed source
License not stated	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.