Speccy – ZX Spectrum emulator

Last Updated on July 13, 2021

Speccy emulates the once popular Sinclair ZX Spectrum home computer, its upgraded versions, and its clones.

It emulates 16kB, 48kB, and 128kB versions of Sinclair ZX Spectrum, as well as Spectrum +2, +2A, and +3, as well as the Timex Sinclair models.

Speccy runs on many different platforms, such as desktops, palmtops, cell phones, set-top boxes, newer videogame consoles, DVD players, and even digital cameras. Speccy is written in portable C language.

Features include:

  • Supported platforms: ZX Spectrum 16KB, ZX Spectrum 48kB, ZX Spectrum 128kB, ZX Spectrum +2, ZX Spectrum +2A, ZX Spectrum +3, Sinclair TC2048, Sinclair TS2068, Czech Didaktik Gama computer, Russian Pentagon 256 (unfinished).
  • Supported input file formats: .SNA Spectrum Snapshots (48kB and 128kB), .Z80 Spectrum Snapshots (versions 1 through 3), .TAP Tape Images, .TZX Tape Images, .FDI Disk Images, .DSK Disk Images (CPCEMU format), .TRD Disk Images, .SCL Disk Images, .SCR Screen Dumps, .POK Cheat Files.
  • Supported output file formats: .SNA Spectrum Snapshots (48kB and 128kB), .Z80 Spectrum Snapshots (versions 1 through 3), .FDI Disk Images, .TRD Disk Images, .SCL Disk Images, .SCR Screen Dumps, .MID MIDI Soundtracks (both PSG and beeper are saved).
  • Supported input devices: CapsShift+Cursor, Cursor/Protek/AGF Joystick, Kempston Joystick, Fuller Joystick, Sinclair Interface II Joysticks, Kempston Mouse, AMX Mouse (unfinished).
  • Supported printers – Printers are emulated by writing each dot as a character into a text file: ZX Printer, Timex TS2040, Alphacom32.
  • Audio: ZX128-compatible AY8910 PSG, Fuller AY8910 PSG.
  • Multiface, BetaDisk/TR-DOS, Sinclair Interface I (unfinished), DISCiPLE (unfinished), PlusD (unfinished).
  • Built-in debugger.
  • Built-in configuration menu.
  • Beeper output conversion to melodic tones.
  • Soundtrack logging into MIDI files.
  • Automatic fire for joysticks.
  • Emulation state saving and loading.
  • 64-color ULA+ emulation, and custom color palettes.
  • Loads screenshots in the .SCR format.

Website: fms.komkon.org/Speccy
Developer: Marat Fayzullin
License: Closed source


Speccy is written in JavaScript. Learn JavaScript with our recommended free books and free tutorials.

Return to ZX Spectrum Home Page

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