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melonDS vs SkyEmu: catalog facts
melonDS	SkyEmu
Free Free and open source under the GPL.	Free Free to download, with source code published on GitHub.
Windows, macOS, Linux	macOS, Linux
Emulates DSi hardware as well as the original DS Local wireless play between emulated consoles	Covers Game Boy, Game Boy Color, GBA and DS in one program Low-level emulation aimed at preservation
Firmware boot needs a dump from an original DS or DS Lite; DSi and 3DS dumps will not… You must supply BIOS, firmware and game files yourself	Platform support is not clearly documented in the research You must supply your own game files
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License not stated
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 September 23, 2026

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