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no$gba vs melonDS: catalog facts
no$gba	melonDS
Free Free to download and use, with optional payment on a name-your-price basis.	Free Free and open source under the GPL.
Windows	Windows, macOS, Linux
Source-level debugger and VRAM viewer for homebrew work Covers GBA, NDS and DSi	Emulates DSi hardware as well as the original DS Local wireless play between emulated consoles
Windows and DOS only Closed source	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
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 21, 2026

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