Alternatives to no$gba
A Game Boy Advance, Nintendo DS and DSi emulator with a source-level debugger. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
no$gba
A Game Boy Advance, Nintendo DS and DSi emulator with a source-level debugger.
Replacements
Listings that take over the same core job as no$gba.
melonDS
A Nintendo DS and DSi emulator focused on accuracy and speed, with local wireless between emulated consoles.
melonDS is an open-source GPL-3.0 DS and DSi emulator for Windows, macOS, Linux and FreeBSD with local wireless play, but it lacks no$gba's source-level debugger and GBA support.
mGBA
A Game Boy Advance emulator that gets the accuracy right and still runs at full speed on weak hardware.
mGBA is an open-source MPL-2.0 Game Boy Advance emulator for three desktop systems with Lua scripting and rewind, but it does not emulate the DS or DSi.
NooDS
A fast, portable open-source emulator for the Nintendo DS and Game Boy Advance.
NooDS is an open-source GPL-3.0 DS and GBA emulator for Windows, macOS, Linux and Android with upscaling, but it has a smaller feature set and no source-level debugger.
DeSmuME
Long-running Nintendo DS emulator with high-resolution rendering.
DeSmuME is an open-source GPL-2.0 Nintendo DS emulator on three desktop systems with high-resolution rendering and movie recording, but it has infrequent releases and no GBA support.
SkyEmu
A low-level emulator for the Game Boy, Game Boy Color, Game Boy Advance and Nintendo DS.
SkyEmu is an open-source low-level emulator covering Game Boy, GBA and DS, also available as a libretro core, with builds documented for macOS and Linux rather than Windows.
VisualBoyAdvance-M
A Game Boy, Game Boy Color and Game Boy Advance emulator that continues the original VisualBoyAdvance.
VisualBoyAdvance-M is an open-source GPL-2.0 emulator for Game Boy, Game Boy Color and GBA on Windows, macOS and Linux, but it does not cover the DS or DSi.
Similar software
Related functionality, not a direct replacement.
BGB
A Game Boy and Game Boy Color emulator with a built-in debugger for Windows and Wine.
Gearboy
An accurate Game Boy, Game Boy Color and Super Game Boy emulator with a built-in debugger.
Emulicious
A free multi-system emulator for Game Boy, Master System, Game Gear and MSX with debugging tools.
Mesen
Cycle-accurate multi-system emulator with a serious debugger.
PCSX-Redux
A PlayStation 1 emulator forked from PCSX, built with debugging and reverse engineering tools.