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Head-to-head · Amiga Emulators

Copperline vs Denise

  • Updated Nov 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Copperline #2 in Amiga Emulators 9.2/10 Free plan Free plan✓ 3 of 4 features Visit Copperline
Denise #5 in Amiga Emulators 8.2/10 Free plan Free plan✓ 2 of 4 features Visit Denise

Copperline leads on 0 checks, Denise on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreCopperline · 9.2/10
  • Free planboth
  • Most featuresCopperline · 3 of 4

Copperline scores higher on our rubric for amiga emulators: 9.2 against 8.2 out of 10; our editors rank them #2 and #5.

Copperline is the better fit for free emulation with netplay and browser access. Denise is the better fit for cycle-accurate desktop emulation and debugging.

  • Copperline fits best

    Free emulation with netplay and browser access

  • Denise fits best

    Cycle-accurate desktop emulation and debugging

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Side by side

Feature Copperline 9.2/10 Visit ↗ Denise 8.2/10 Visit ↗
At a glance
Editor score 9.2 8.2
Ranking #2 in Amiga Emulators #5 in Amiga Emulators
Best for Free emulation with netplay and browser access Cycle-accurate desktop emulation and debugging
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Desktop Desktop
Platforms Web, Windows, macOS, Linux Windows, macOS, Linux
Support Community, Docs Docs, Tickets
Built for Solo, Small business Solo, Small business
Features Copperline 3/4 · Denise 2/4
Save states ✓ ✓
Netplay ✓ (best) Not checked yet
Kickstart included — Not checked yet
Hardware acceleration ✓ ✓
Specs
Amiga models A1000, A500, A500OCS, A500Plus, A600, A1200, A3000, A4000, CDTV, CD32 A1000 (OCS/ICS), A500 (full OCS), A500 (ECS Agnus with OCS Denise), A500+, A600
Host platforms macOS, Linux, Windows, browser Windows 7+, macOS (Intel and ARM), Linux, BSD
Disk image formats ADF, ADZ, single-file ZIP, DMS, extended ADF, IPF, SCP ADF, HD-ADF, HDF, IPF, DMS, SCP
Our review
Pros
  • Covers OCS, ECS, AGA, CDTV, CD32, and many Amiga profiles
  • Supports browser, Windows, macOS, and Linux
  • Adds save states, rewind, debugging, scripting, and rollback Netplay
  • Cycle-accurate OCS and ECS Amiga emulation
  • Save states, rewind, RunAhead, shaders, and hard-disk support
  • Built-in debugger and disassembler for technical users
Cons
  • Original Commodore Kickstart ROMs must be supplied by the user
  • Its broad configuration may be more than casual players need
  • Some software requires original ROMs in addition to disk images
  • Amiga coverage is centered on A1000, A500, A500+, and A600
  • Desktop-focused platform support excludes mobile systems
  • Requires compatible ROM files for documented Kickstart support
Our verdict

Copperline is an open-source Amiga emulator written in Rust for games, demos, software development, and hardware experimentation. It runs in a browser or as a native application on macOS, Linux, and Windows. Its emulation coverage spans…

Read the review →

Denise is a free, open-source desktop emulator for Commodore 64 and Amiga systems. It is aimed at users who want cycle-accurate emulation, configurable virtual hardware, and tools for examining software behavior. Its Amiga support covers…

Read the review →
  1. CopperlineAmiga Emulators 9.2Free plan
  2. DeniseAmiga Emulators 8.2Free plan

Strengths and trade-offs

  • Copperline — where it wins

    • Covers OCS, ECS, AGA, CDTV, CD32, and many Amiga profiles
    • Supports browser, Windows, macOS, and Linux
    • Adds save states, rewind, debugging, scripting, and rollback Netplay

    Where it doesn't

    • Original Commodore Kickstart ROMs must be supplied by the user
    • Its broad configuration may be more than casual players need
    • Some software requires original ROMs in addition to disk images

  • Denise — where it wins

    • Cycle-accurate OCS and ECS Amiga emulation
    • Save states, rewind, RunAhead, shaders, and hard-disk support
    • Built-in debugger and disassembler for technical users

    Where it doesn't

    • Amiga coverage is centered on A1000, A500, A500+, and A600
    • Desktop-focused platform support excludes mobile systems
    • Requires compatible ROM files for documented Kickstart support

More comparisons

All amiga emulators comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026

Last updated · How we research and update