Snes9x is a Super Nintendo Entertainment System emulator software with official ports for MS-DOS, Linux, Microsoft Windows, AmigaOS 4, macOS, MorphOS, Xbox, PSP, PS3, GameCube, Wii, iOS, and Android.

Development of Snes9x began in July 1997 when Gary Henderson's Snes96 and Jerremy Koot's Snes97 emulators merged to create Snes9x.

[5] Version 1.55 added support for the MSU1 enhancement chip [6] found on the SD2SNES [7] The emulator PocketSNES for Pocket PCs is based on Snes9X.

[8] There is also an unofficial Snes9x port compiled with Emscripten which runs inside a web browser.

[12] In 2021, Digital Trends noted that the emulator had broad compatibility and ran on systems with limited resources.