zxsp (beta)
zxsp simulates the black&white models ZX80 and ZX81, the Jupiter Ace, the ZX Spectrum models with 16K and 48K ram, the Spanish clone from Inves, the +128, +2, the +2A/+2B and the +3 including the Spanish and French localised versions, the Portuguese TC2048 and the TS2068-based machines TS2068 (USA), TC2068 (Portugal) and unipolbrit 2086 (Poland).
* Multiple instances
* Screen zoom factor x1 to x4
* Fullscreen mode
* Excellent stereo sound
* Precise screen and border effects
* Virtual tape recorder and keyboards
* Save highres and flashing Gif screenshots and record Gif movies
* Sound effects
* Convert between tape file formats
zxsp runs on Intel Macs with Mac OS X 10.6 (Snow Leopard) and above. Reportedly it also runs well on M1 ARM based Macs with Mac OS 13.1 (Ventura) under emulation.