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Head-to-head · ZX Spectrum Emulators

zx_go vs EightyOne

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score zx_go #3 in ZX Spectrum Emulators 9.2/10 Open source ✓ 2 of 2 features Visit zx_go
EightyOne #6 in ZX Spectrum Emulators 8.8/10 Free plan Free plan✓ 2 of 2 features Visit EightyOne

zx_go leads on 0 checks, EightyOne on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scorezx_go · 9.2/10
  • Free planonly EightyOne

zx_go scores higher on our rubric for zx spectrum emulators: 9.2 against 8.8 out of 10; our editors rank them #3 and #6.

zx_go is the better fit for advanced debugging across desktop platforms. EightyOne is the better fit for windows users emulating Sinclair systems.

  • zx_go fits best

    Advanced debugging across desktop platforms

  • EightyOne fits best

    Windows users emulating Sinclair systems

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Side by side

Feature zx_go 9.2/10 Visit ↗ EightyOne 8.8/10 Visit ↗
At a glance
Editor score 9.2 8.8
Ranking #3 in ZX Spectrum Emulators #6 in ZX Spectrum Emulators
Best for Advanced debugging across desktop platforms Windows users emulating Sinclair systems
Pricing model Free Free
Starting price Open source Free plan
Free plan Not checked yet ✓ (best)
Free trial — —
Deployment Desktop Desktop
Platforms Windows, macOS, Linux Windows
Built for Solo, Small business Solo
Features zx_go 2/2 · EightyOne 2/2
Built-in debugger ✓ ✓
Open source ✓ ✓
Specs
Supported Spectrum models Not checked yet Not checked yet
Host platforms Windows, macOS, Linux Windows
Tape formats .tap, .tzx Not checked yet
Snapshot formats .sna, .z80, .szx .Z80
Peripheral support +3 FDC, Beta Disk, Opus Discovery, Interface 1/2, DISCiPLE, Multiface, Kempston mouse, ZX Printer, joysticks Joysticks (Kempston, Fuller, Sinclair 1, Sinclair 2, Cursor, Boldfield); floppy drives; microdrives; sound and speech interfaces; MIDI output
Our review
Pros
  • Emulates classic Spectrum models and ZX Spectrum Next
  • Supports snapshots, tapes, disks, cartridges, and RZX recording
  • Offers graphical, telnet, headless, and reverse debugging
  • Emulates Spectrum, ZX80, ZX81, Timex and Jupiter ACE models
  • Supports multiple joystick types, disks, microdrives and sound interfaces
  • Includes execution breakpoints, a debugger memory window and MIDI output
Cons
  • Spectrum Next emulation requires separately downloaded licensed ROMs
  • Host platform coverage is limited to Windows, macOS, and Linux
  • Its advanced debugging focus may exceed casual emulation needs
  • Windows-only host support limits cross-platform use
  • Its broad Sinclair focus may be more than Spectrum-only users need
  • MIDI output is limited to Spectrum 128 and Spectrum +2
Our verdict

zx_go is an open-source desktop emulator for classic Sinclair systems and ZX Spectrum Next. It covers the 48K, 128K, +2, +2A and +3 models, along with the Pentagon, Spectrum Next and SAM Coupé. The project is aimed at users who want more…

Read the review →

EightyOne is a free Windows desktop emulator for ZX Spectrum and other Sinclair-compatible home computers. Its supported machines include ZX Spectrum 16K/48K, 128K, +2, +2A and +3 systems, as well as ZX80, ZX81, Timex and Jupiter ACE…

Read the review →
  1. zx_goZX Spectrum Emulators 9.2Open source
  2. EightyOneZX Spectrum Emulators 8.8Free plan

Strengths and trade-offs

  • zx_go — where it wins

    • Emulates classic Spectrum models and ZX Spectrum Next
    • Supports snapshots, tapes, disks, cartridges, and RZX recording
    • Offers graphical, telnet, headless, and reverse debugging

    Where it doesn't

    • Spectrum Next emulation requires separately downloaded licensed ROMs
    • Host platform coverage is limited to Windows, macOS, and Linux
    • Its advanced debugging focus may exceed casual emulation needs

  • EightyOne — where it wins

    • Emulates Spectrum, ZX80, ZX81, Timex and Jupiter ACE models
    • Supports multiple joystick types, disks, microdrives and sound interfaces
    • Includes execution breakpoints, a debugger memory window and MIDI output

    Where it doesn't

    • Windows-only host support limits cross-platform use
    • Its broad Sinclair focus may be more than Spectrum-only users need
    • MIDI output is limited to Spectrum 128 and Spectrum +2
  • zx_go9.2/10 · Open source

    A deep desktop emulator for classic Spectrum systems, Next support, peripherals, and debugging.

    Visit zx_goFull verdict →
  • EightyOne8.8/10 · Free plan

    Broad Sinclair system emulation with peripherals and debugging, for Windows desktop users.

    Visit EightyOneFull verdict →

More comparisons

All ZX spectrum emulators comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update