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Head-to-head · ZX Spectrum Emulators

Klive IDE vs EightyOne

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score Klive IDE #5 in ZX Spectrum Emulators 8.9/10 Open source ✓ 2 of 2 features Visit Klive IDE
EightyOne #6 in ZX Spectrum Emulators 8.8/10 Free plan Free plan✓ 2 of 2 features Visit EightyOne

Klive IDE 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 scoreKlive IDE · 8.9/10
  • Free planonly EightyOne

Klive IDE scores higher on our rubric for zx spectrum emulators: 8.9 against 8.8 out of 10; our editors rank them #5 and #6.

Klive IDE is the better fit for ZX Spectrum development workflows. EightyOne is the better fit for windows users emulating Sinclair systems.

  • Klive IDE fits best

    ZX Spectrum development workflows

  • EightyOne fits best

    Windows users emulating Sinclair systems

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Side by side

Feature Klive IDE 8.9/10 Visit ↗ EightyOne 8.8/10 Visit ↗
At a glance
Editor score 8.9 8.8
Ranking #5 in ZX Spectrum Emulators #6 in ZX Spectrum Emulators
Best for ZX Spectrum development workflows 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 Klive IDE 2/2 · EightyOne 2/2
Built-in debugger ✓ ✓
Open source ✓ ✓
Specs
Supported Spectrum models Not checked yet Not checked yet
Host platforms macOS, Windows, Linux Windows
Tape formats .tap, .tzx Not checked yet
Snapshot formats Not checked yet .Z80
Peripheral support virtual keyboard, floppy disk drives Joysticks (Kempston, Fuller, Sinclair 1, Sinclair 2, Cursor, Boldfield); floppy drives; microdrives; sound and speech interfaces; MIDI output
Our review
Pros
  • Detailed CPU, memory, disassembly, breakpoint, watch, and BASIC views
  • Built-in Z80 assembler with one-click compile, inject, run, and debug
  • Runs on Windows, macOS, and Linux with ZX BASIC and SJASMPLUS integration
  • 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
  • Its development tooling may be more than casual emulation requires
  • Disk loading for .dsk files is specified for ZX Spectrum +3E
  • Project integrations focus on ZX BASIC and SJASMPLUS
  • 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

Klive IDE combines a desktop ZX Spectrum emulator with an integrated development environment for Sinclair Z80-based computers. It supports ZX Spectrum 48K, 128K, +2E, and +3E models, along with tape loading for .tap and .tzx files and disk…

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. Klive IDEZX Spectrum Emulators 8.9Open source
  2. EightyOneZX Spectrum Emulators 8.8Free plan

Strengths and trade-offs

  • Klive IDE — where it wins

    • Detailed CPU, memory, disassembly, breakpoint, watch, and BASIC views
    • Built-in Z80 assembler with one-click compile, inject, run, and debug
    • Runs on Windows, macOS, and Linux with ZX BASIC and SJASMPLUS integration

    Where it doesn't

    • Its development tooling may be more than casual emulation requires
    • Disk loading for .dsk files is specified for ZX Spectrum +3E
    • Project integrations focus on ZX BASIC and SJASMPLUS

  • 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

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