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mGBA vs BGB: catalog facts
mGBA	BGB
Free Free and open source under the MPL 2.0.	Free Free to download.
Windows, macOS, Linux	Windows
Accurate enough for the awkward cartridges: motion, solar and clock hardware Full speed on low-end machines, including netbooks	High emulation accuracy based on test ROM research Built-in debugger for ROM development
Game Boy Advance and earlier only; no DS or later Link cable play only works between instances on the same computer	Windows only, with other systems relying on Wine Closed source
Downloadable app	Downloadable app
Open source	Closed source
License: MPL-2.0	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 24, 2026

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