A freeware ZX80/81 emulator for DOS and Windows.

Java emulator of Timex-Sinclair 1000.

Sinclair ZX81 emulator written in VisualBasic. Runs under Windows on a 133MHz Pentium or better. Includes source.

ZX80 and ZX81 Emulator Site

A freeware ZX80 emulator for DOS which draws the screen lines by lint, thus fixing some flicker problems seen in other emulators.

A freeware ZX80/81 emulator for Linux/i386.

ZX81 Emulator for the PalmPilot. Requires PalmOS V3.0 or greater.