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melonDS 1.1
Nov 18th 2025

This release adds DSP HLE, support for importing cheats, BSD builds, and several other bugfixes.

  • 3D: use 32-bit division in software renderer (Arisotura)
  • fix 8-bit NO$GBA debug register writes (FrankHB)
  • fix save type for Legacy of Ys - Books I and II (CasualPokePlayer)
  • ROM info dialog: make DS banner more accurate (Rayyan)
  • DSi: add DSP HLE, DSP audio, mic input (Arisotura, CasualPokePlayer)
  • make input system thread-safe (fixes random multiplayer crash) (Arisotura)
  • CI: various vcpkg improvements (Nadia)
  • JIT/x64: ensure writable code memory after alloc (Rayyan)
  • JIT: add support for PaX MPROTECT on NetBSD (Rayyan)
  • JIT: handle W^X codemem in fault handler (Rayyan)
  • SD/MMC: fix crash when accessing port with no device connected (Arisotura)
  • gdb stub: fix reading wrong code for vCont packet (jonko0493)
  • CI: add OpenBSD CI (Izder456)
  • DLDI: fix log2(size) in driver header (Arisotura)
  • camera: fix CAM_MCNT reset behavior (Arisotura)
  • CI: add x64 FreeBSD and NetBSD CI (Rayyan)
  • audio: add high-quality resampling with blip-buf (Nadia)
  • 3D: fix UB in software renderer when drawing polygons with linear interpolation and Z-buffering (Arisotura)
  • AR: add extra D400000x data processing opcodes (Arisotura)
  • Qt6: use new way to access the native display/window on X11/Wayland (Nadia)
  • nix: update inputs and add dev shell Qt wrapper workaround (Nadia)
  • DSi: add support for the main RAM size register, with hack to work around loader crash (Arisotura)
  • AR: add support for importing cheats from usrcheat.dat, improve UI (Arisotura)
  • fix UI glitchiness under Wayland when OpenGL is used (Arisotura, thanks PCSX2 team)
  • fix minor Thumb BLX immediate bugs (Jakly)
  • update xxHash to 0.8.3 (JordanTheToaster)
  • reduce frontend audio buffer size to 512, fix audio sync (Nadia)
  • fix bug that could randomly break audio output (Arisotura)
  • compute renderer: implement tile size scaling to alleviate glitches at high resolutions (FireNX70)
  • SPU: fix uninitialized variable causing potential crash (Nadia)
  • add support for building melonDS on Windows without MinGW (Nadia)
  • JIT: add OpenBSD compatibility (Izder456)

DownloadSizeSHA256
FreeBSD x641.63 MB35a5c597c67df2beddffa102373038920862faf761d77e84d98c44ca5e2a7d3c
Linux AppImage ARM6431.84 MBc537ae018d6dcedfe9da0317a1d5c0163e69201e23abfa163fa2a63e437ace09
Linux AppImage x6432.70 MBbf377420a2e95f2cd2cdda17d5372b51c2534f858b038db9ec6d129554875124
Linux ARM641.72 MB43bd28d9e6e864f08747905c9cbdeac701880d75f2dedad737279c7a005790f4
Linux x641.78 MB99465129f5413b2aad332e4377e523cf3cda905dc329d47dcb1ad01ce2cb3f66
macOS Universal23.25 MB79843a5e5cab93188bd11942bff5440b9505ee91c6f526f7e90c22e3cff6718d
NetBSD x641.60 MBd9276622b028d98acdedcfdab7398d0d291ff2b7e64d41e109831befb1b61a9a
OpenBSD x641.83 MB301988097b145e7230a66d0e4fe84c913661df2a7626817ce03066369cf207b2
Windows ARM6411.97 MB9bd4c3efb529540f7577e905439ca6acd372d16b5fbbff31cca8ae3fd60026ce
Windows x6418.58 MB9f3f8a244103be20b5b657af5b0ed1b2a66bb20a7181476a6d294c9a53d4f8c8

Github release
melonDS 1.0
Jul 8th 2025

This release fixes several bugs that were found in the 1.0 RC, and adds support for the Motion Pak and Guitar Grip add-ons, as well as some fixes to DSi camera support.

  • build system and CI fixes (Nadia)
  • DSi title manager: fix handling of title strings (Rayyan)
  • fix gdbstub not activating until the console is reset (ZNixian)
  • improve audio when not running at 60FPS (Jakly)
  • fix a lot of warnings (Nadia)
  • fix framelimiter bugs (Jakly)
  • add support for solar sensor without using Boktai ROM (Jesse)
  • set SDLHINTAPP_NAME (redbluegreenhat)
  • fix undefined behavior when indexing into ARCode::Code (Jesse)
  • DLDI: add support for unaligned I/O in melonDLDI driver (Arisotura)
  • audio settings: fix mic settings not applying when closing the dialog (Arisotura, Nadia)
  • multiplayer: load firmware from correct instance-specific file (Arisotura)
  • 3D: small fix to translucency flag assignment (Jakly)
  • AES: load Tad key (edo9300)
  • slot-2: add support for Motion Pak and Guitar Grip (asie)
  • DSP: fix PDATA reads (Arisotura)
  • slot-2: don't return 0 when attempting to read from the GBA GPIO address (edo9300)
  • camera: always trigger DMA when reaching the end of a frame (Arisotura)
  • NDMA: fix IRQ in infinite repeat mode (Arisotura)
  • camera: fix resolution selection code (Arisotura)
  • UI: fix OpenGL issues with multiple windows (Arisotura)
  • UI: add a way to tell windows apart (Arisotura)
  • camera: make timings and FIFO more accurate (Arisotura)
  • DSi: add support for 32-bit bus VRAM timings (SCFG_EXT9 bit13) (Arisotura)
  • sound: use single buffer, improves audio latency (Sparronator9999)
  • fix "full bios boot" not being set properly on initial DSi class creation (Jakly)

DownloadSizeSHA256
Linux AppImage ARM6431.64 MBe39abe0739c320ca4459ef9ae312580436efaa7aff1146602eb8f1641314fe96
Linux AppImage x6432.49 MBa26557d3aca8695d1cf93108ce12be7f3a46943e8c1b5e645f81f2585132ce6a
Linux ARM641.66 MB6d385cf5e8c5d508a7dc1fc327649227fde06f781daa7ea158bd897c35461340
Linux x641.71 MB1f6187a69a34261a8aa28ca0758493e89f0969f70ff14a38d0b861c8dc236160
macOS Universal22.78 MB4a1b0bb1557aaa69f33ae1735a30df6ee8e80f63fa610dec46d999dabcabacfc
Windows x6418.21 MB4ffc3c03a6384275760faa18f56751b47377ef90bd5b5bf085d1e6e94a1e3e01

Github release
melonDS 1.0 RC
Nov 21st 2024

This release brings a major core refactor, faster local multiplayer, LAN support, the new OpenGL compute shader renderer, multi-window support, and more!

  • add splashscreen (Arisotura)
  • add About dialog (Nadia)
  • emulation fixes for calico (fincs)
  • make the frontend mostly thread-safe
  • refactor core to support multiple instances in one process
  • OpenGL renderer: avoid undefined Z when using W-buffering (Generic)
  • improve microphone input (Arisotura)
  • add support for multiple windows (Arisotura)
  • new configuration system (Arisotura)
  • add OpenGL compute shader renderer (Generic)
  • implement framerate target presets (Jakly)
  • fix microphone blow noise input (Generic)
  • add LAN support (Arisotura)
  • add Nix flake (Nadia)
  • attempts at improving local multiplayer connections (Arisotura)
  • many accuracy improvements to the software 3D renderer (Jakly)
  • fix inaccuracy with NO$GBA debug registers (pants64DS)
  • OpenGL renderer: add support for changing BG0HOFS midframe (Arisotura)
  • fix zstd ROM loading issues (Nadia)
  • audio: add Gaussian (SNES) interpolation (Nadia)
  • fix DSiWare detection (JesseTG)
  • add support for R4 Revolution/M3 Simply carts (asiekierka)
  • fix DS/GBA comm not working when using FreeBIOS (Nadia)
  • probably more

DownloadSizeSHA256
Linux AppImage35.01 MBb4b57e79ad317f8590adeff5bf73233d312886e6c726931e653033c743eb8371
Linux ARM641.61 MB5eb3b6bf276f67e1ca768f53744292f5468aa6da310cf0cb5bf4cc5c84d29bdb
Linux x641.71 MB47168cf3469cb01267d5ac124d36e2f941d724d83c822ae313fd3d4b7a3360da
macOS Universal21.88 MB6ace04cbe9854438b825341b32b1018412c0d22538ede047f24f805c696034f2
Windows x6416.93 MBeda68ed9295bfce4504d9356d3614fbd77648dc3ab1e4ad415f78778f745b33e

Github release
melonDS 0.9.5
Nov 3rd 2022

This release brings improved local multiplayer connectivity, DSi camera emulation, and many more improvements.

  • remove incorrect color profile from PNG icons (Nadia)
  • DLDI fixes for the Smash demo (Arisotura)
  • fix gaps in I/O handling (Arisotura)
  • fix invalid savemem commands, fixes Dementium (Arisotura)
  • FreeBIOS: add VRAM-compatible LZ77 decompress function, fixes Yoshi's Island (Arisotura)
  • default firmware: in DSi mode, emulate DWM-W015 wifi board instead of DWM-W024 (Arisotura)
  • default firmware: save WFC settings to separate file (Arisotura)
  • disable firmware overrides UI when firmware override isn't checked (Nadia)
  • 2D: more accurate fade/blending (Arisotura)
  • DSi: add support for GXFIFO NDMA (Arisotura)
  • DSi: add mainRAM mirror at 0x0C000000 (Arisotura)
  • add 3DS 5:3 aspect ratio, refactor aspect ratio code (Nadia)
  • OpenGL: fix 16x resolution on macOS (Nadia)
  • fix triggers being recognized as negative analog stick values during mapping (Nadia)
  • fix joystick mapping buttons on macOS (Nadia)
  • DSi: preliminary implementation of SNDEXCNT (Generic)
  • DSi: fix SD inserted/removed IRQ bits (Generic)
  • DSi: implement 8/16bit access to AES registers (Generic)
  • DSi: fix SCFG_MC cart-inserted bit (Generic)
  • JIT: invalidate blocks in ARM7 VRAM/WRAM when it is remapped (Generic)
  • fix ROM banner reading when the ROM has no banner (Rayyan, Arisotura)
  • fix UTF16 ROM title handling in the ROM info dialog (Rayyan)
  • wifi: improvements to wifi emulation (Arisotura)
  • wifi: shared-memory based sync/comm mechanism for local wifi (Arisotura)
  • proper support for multiple melonDS instances for multiplayer (Arisotura)
  • DSi: actual, proper camera support (Arisotura)
  • DSi: fix DSP enough that it will actually work (Arisotura)
  • fix OpenGL context handling (Stenzek, Generic, Nadia)
  • force-align all memory accesses (instead of just CPU memory accesses) (Arisotura)
  • better CLI parameter handling (patataofcourse)
  • fix bugs in DSi direct boot (Arisotura)

DownloadSizeSHA256
Linux ARM641.22 MB1747bd4d34bae7ecd2fdb15b4f7458d991dd0bd9bf014de6fea8ded4b12664d7
Linux x641.25 MB67eb30acb1bb33a36ad9ea3d025a4666cc188ee51c5289857e940f3892efe84d
macOS Universal43.86 MB649f9926894faf0776524a0885ecbe10eb9c5bd8b53ed1b33207ac464bd5a2f1
Windows x6413.88 MB289b1644004d8762987dc1daf3a61eedfafb0a5f442801bfb9d2a18299fd39a9

Github release
melonDS 0.9.4
Mar 8th 2022

This release brings several improvements to wifi emulation, built-in BIOS and firmware, folder sync for DLDI and DSi SD card, and several other improvements.

  • Redesign of the Input dialog (Rayyan)
  • Use DraStic open-source DS BIOS replacement (Swordfish90, asiekierka)
  • Generate non-bootable firmware replacement (Swordfish90, asiekierka, others)
  • Support for syncing DLDI/DSi SD image to a folder (Arisotura)
  • ARM9 PU (code/data abort) support in interpreter mode (Arisotura)
  • Fix ADPCM decoding bug resulting in potential crackling (Arisotura)
  • Block sound DMA from reading the ARM7 BIOS (Arisotura)
  • Smarter SDL initialization (andrigamerita, Nadia, Arisotura)
  • Properly center the main window on macOS (Nadia)
  • Don't try to render if the emulator is inactive (Nadia)
  • Fix potential issues with DSi title importing (Nadia, Epicpkmn11)
  • Custom path support (Arisotura)
  • Fix nifi socket init on BSD and macOS (Nadia)
  • Add support for zero addresses in AR codes 3xxxxxxx to Axxxxxxx (Arisotura)
  • Lower window refresh rate if running too fast (RSDuck)
  • Wifi power-saving support (RSDuck)
  • Allow swap-screen hotkey to swap between displaying only top screen and only bottom screen (ZackWeinstein)
  • Add RAM search dialog (2jun0)
  • Add power management dialog for setting battery parameters (Rayyan)

DownloadSizeSHA256
Linux ARM64917.37 KBb5239d1fd729f5c0293e49ac9abc1026549edc0bc8d3ecfffe25143bdc51bf0d
Linux x64989.22 KBb1a8a1759acce339ec76591ad7d917e18dc932b6bd4b44fd3a4cf783b13d6f36
macOS ARM6423.48 MB004dbbf06ce7dfa3dac0a3587995d6925002f36907e541ba3b0b63bdad092ecf
macOS Universal47.00 MB3a370f550a45a53a143ba00c8d52d2534e2cfc7fbdb9459d700c1443ed97d51c
macOS x6424.75 MB77be2bdd761489afc9b45af4e9d89689a18ecdd4606eb0d93838839ac6f275fc
Windows x648.94 MB8df7ae6293e358dcc4ff9728c72d02886893b89422171f04bb663355fa7faa07

Github release
melonDS 0.9.3
Sep 1st 2021

This releases adds a bunch of bugfixes and general quality of life improvements.

  • Fix macOS right modifier detection (Nadia)
  • Fill most gaps in ROMList (Arisotura)
  • Fix touchscreen code in non-hybrid layout mode (Arisotura)
  • GBACart: simulate open-bus decay roughly (Arisotura)
  • Frontend: handle tablet and touch events (Generic aka RSDuck)
  • Implement NO$GBA debug registers (BlueTheDuck)
  • Make Setup Cheats option reappear on macOS (Nadia)
  • Add frame step hotkey (Yukitty, additional fixes by Gal20)
  • Add DSP code (PoroCYon, purringChaos)
  • Save window state (Arisotura)
  • JIT optimisations and fixes (Generic aka RSDuck)
  • Add ROM info dialog (Rayyan)
  • Allow using DSi footer within NAND images (MightyMax)
  • More accurate NWRAM implementation (MightyMax)
  • Only open microphone if necessary (Arisotura)
  • Fix undo load savestate loading (Generic aka RSDuck)
  • Fix pause when inactive (Generic aka RSDuck)
  • Add audio interpolation (Arisotura)
  • Add SOUNDBIAS and optional 10bit audio (Nadia)
  • Patch touchscreen calibration data in DSi mode (Arisotura)
  • Add DSi title manager (Arisotura)
  • Fix threaded rasteriser deadlock when VCount is moved (Generic aka RSDuck)
  • Add preliminary DSi-mode direct boot (MightyMax, Arisotura)
  • More accurate DMA timings (Arisotura)

DownloadSizeSHA256
Linux ARM64803.73 KB2f900d036808e790dc33ee79ba46c93adda9fd25ae2af8e074c9918ad9e3fd62
Linux x64862.16 KB41d3f4f42ba3c3e263df9db6e73229068eeb85eb6a8f2ee46d2fe482df57b130
macOS ARM6423.08 MBa8baa60d4a8e9376b2e214175a00781aeb32f3be840ead3ef3182fc3e23bfbf6
macOS Universal46.34 MBc652eaf2d693d1d55dfa2dfae5f00fbd805127831fd0804598f8e9c11408d35b
macOS x6424.59 MB04127b3c4106ff1780e7e4082aa978e7030beeb9c231656faea0ef27f73e16c3
Windows x648.88 MB108693998ce58175b4acb02788177f80e9e277658fa2cc9c62a2c7ae34181b10

Github release
melonDS 0.9.2
Apr 26th 2021

This release adds archive support, new screen layouts, and other fixes.

  • fix JIT on ARM Macs
  • add proper Mac builds
  • GX: optimize single-param commands
  • add recent-files menu (abcdjdj)
  • add support for loading files from archives
  • fix JIT bugs
  • fix wifi bugs
  • improve performance of save-memory writeback
  • add hotkey for swapping screens
  • 3D/GL: attempt fixing various bugs
  • fix OpenGL scaling on hiDPI displays
  • rework GPU2D for easier integration of full GL rendering
  • rework NDSCart and GBACart to make it easier to implement new cart types
  • add support for NAND save memory (WarioWare DIY, Jam with the Band)
  • fix bugs in DSi I2C and SD/MMC interfaces
  • new screen modes

DownloadSizeSHA256
Linux ARM64451.25 KB35b913a6c4ad664a049b8e275e04502e8c48a04e7cb97c715937a862d7063efb
Linux x64499.61 KB4c5872a544829c8881e8378d8d07fed440c38c22d3025028dd1cc71daa31f0f4
macOS ARM6422.01 MB5dc4f493aaabaac91bf8fdd79c5de1c5014daa2cce64718c43f461c2640c82ab
macOS Universal44.00 MBd58c9c377f979e635244bbc955e3704054cfd1193a0b0d7b2af323c2420b095a
macOS x6423.29 MB253c3ce58c626d05c62444a347ccc6b3bd6e7698f685ffd404c9a51ac5c08a91
Windows x648.18 MBaabed26e6056697b73ab7388b5c18a08318c66684f1fe7b907e7772f74ed6c94

Github release
melonDS 0.9.1
Dec 25th 2020

This release adds several improvements to DSi emulation and other areas.

  • add fullscreen hotkey
  • remove hardcoded F11-debug key (oops)
  • fix some gaps in the IO handlers
  • add ability to run unlaunch'd DSi NANDs
  • add preliminary camera support (feeds fixed stripe pattern)
  • fix potential bugs with tight timers (fixes ZXDS)
  • SPU: small optimization to the mixer
  • better framerate limiter
  • fix several JIT issues
  • GPU: lay bases for EVIL PLANS
  • GPU: emulate separate scroll register for 3D layer scrolling
  • some corrections to the ROM savetype list
  • a bunch of misc fixes, as usual

DownloadSizeSHA256
Linux ARM64430.46 KB8a881f5f5bf530ed7bf67c2d8f15f8baaafc70d3e50c44e81ae6aed017157634
Linux x64475.13 KBe216c923ae9b5cd97c6e82c0d125c8032b92d5b902b9a4f261305f4e708a5166
macOS x64870.01 KB5928ad133661b6ea428264894160b87cc48cdfc79461fb220c72d984613d6a62
Windows x647.65 MB6f30ab3194cec4a31649c7e404a91353151f6c6fa04f97ad19c57b39970de46d

Github release
melonDS 0.9
Sep 4th 2020

This release adds a plethora of new features: a shiny new Qt interface, a JIT recompiler, DSi mode, DLDI support, and others.

  • merge in experimental DSi support
  • 2D: delay palette lookup for sprites
  • 2D: some attempts at fixing mosaic
  • CP15: only update PU regions when actually needed
  • 2D: fix sprite Y-flip
  • 3D/GL: fix transparency bugs
  • add warning against hacked firmwares
  • fix libpcap bug (i404788)
  • better file handling code (Nadia)
  • GBA slot and solar sensor support (rzumer)
  • add support for AR cheat codes
  • fix handling of ROMs with encrypted secure area
  • 3D: change clipping to be closer to hardware
  • 3D: implement DISP1DOTDEPTH
  • 3D: more accurate viewport transform
  • build fixes (Nadia)
  • add JIT recompiler (RSDuck)
  • new Qt UI
  • SPU: only start channels when they can actually run
  • 2D: allow writes to DISPCNT/masterbright/capture/dispFIFO regardless of POWCNT
  • SPU: don't process channels with len<4
  • 3D/GL: cleaner polygon generation code
  • 3D/GL: add attempt at reducing warping on quads/etc
  • 3D: add missing variables to savestates
  • wifi: avoid potential out-of-bounds writes with invalid RX buffer setups
  • 3D/GL: fix issues with framebuffer handling
  • make MAC randomization optional
  • make software renderer the default
  • add basic DLDI

DownloadSizeSHA256
Linux x64475.31 KB5ccbc229c76833d8e35bd7217010119d8e4716bf11d166ac158a87ddc159d877
Windows x647.49 MBe4a13994308ac2a5d347cfc2021322352cc03213da48b0ead23214b521e2fbad

Github release
melonDSi
Oct 15th 2019

Early DSi emulation beta. See this post for more information.


DownloadSizeSHA256
Linux x64296.42 KB88cc9872929e5640e3395e1ce707c268b7490e3b9507843fd47337564336f47d
Windows x641.13 MBe158e4aecf6c0cbcc946f3c0f0d8d41960bf14bf9f9f39aaf7ec384fd3219e53
Pages:123
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