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bsnes vs jgenesis: catalog facts
bsnes	jgenesis
Free The open-source emulator is available without a license fee.	Free Free to download from GitHub.
Windows, macOS, Linux	Windows, Linux, Web
HD Mode 7 and run-ahead give a visibly better result than a plain emulator Low-level emulation of enhancement chips rather than high-level shortcuts	Several Sega consoles plus the SNES in one emulator Runs in a browser through WebAssembly
Accuracy mode is demanding on older hardware Development has been community-maintained since the original author's death	macOS is not officially supported Smaller project than the established multi-system emulators
Downloadable app	Downloadable app, Web application
Open source	Closed source
License: GPL-3.0	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 1, 2026

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