Copperline
- 1Runs onLinux, Mac, Web, Windows
- 2CostsNot stated by the maker
- 3Amiga modelsA1000, A500, A500OCS, A500Plus, A600, A1200, A3000, A4000, CDTV, CD32
- 4Host platformsmacOS, Linux, Windows, browser
- 5Save statesYes
- 6NetplayYes
- 7Disk image formatsADF, ADZ, single-file ZIP, DMS, extended ADF, IPF, SCP
- 8Kickstart includedNo
Overview
Copperline is a free, open-source Amiga emulator for games, demos, and development, available on Linux, macOS, Windows, and in browsers. It models OCS, ECS, and AGA machines with 68000 through 68060 CPUs, plus expansion boards, hard disks, and CD drives. Its Debug workspace puts registers, disassembly, and memory beside the Amiga display, and supports reverse stepping from snapshots. Development features include scripted inputs and captures, repeatable test sessions, headless runs, a JSON-RPC control protocol, and debugging Amiga source code from Visual Studio Code. Rollback netplay supports two players on desktop or in browsers, up to four desktop players with the four-player adapter, and up to eight spectators. A libretro core supports RetroArch, including A500, A1200, and CD32 software, WHDLoad, playlists, save states, four local controller ports, and RetroArch netplay. Copperline includes the AROS Kickstart replacement, though some software needs an original Kickstart ROM. It does not support high-density Amiga floppy images or sector-based PC/CrossDOS images.
Who it is for
Copperline suits Amiga users who want to play games and demos, or developers who need debugging, automation, and repeatable test sessions. Its browser and desktop netplay options also serve players who want multiplayer sessions.
What is good
- Models OCS, ECS, and AGA hardware with 68000–68060 CPUs.
- Debug workspace supports reverse stepping from snapshots.
- Automation includes scripted inputs and JSON-RPC control.
- Rollback netplay supports desktop and browser players.
What to know first
- Some software requires an original Kickstart ROM.
- High-density Amiga floppy images are unsupported.
- Linux AppImage requires a Vulkan driver.
- macOS may require approval on first launch.
Verdict
Copperline combines Amiga emulation with development and debugging tools, plus rollback netplay. Check its disk-image limits, ROM needs, and platform-specific launch requirements before choosing it.
Compared on Amiga emulators
- Free plan
- Yescopperline.dev
- Amiga models
- A1000, A500, A500OCS, A500Plus, A600, A1200, A3000, A4000, CDTV, CD32copperline.dev
- Host platforms
- macOS, Linux, Windows, browsercopperline.dev
- Save states
- Yescopperline.dev
- Netplay
- Yescopperline.dev
- Disk image formats
- ADF, ADZ, single-file ZIP, DMS, extended ADF, IPF, SCPcopperline.dev
- Kickstart included
- Nocopperline.dev
- Hardware acceleration
- Yescopperline.dev
Facts
- Purpose
- Copperline is an open-source Amiga emulator for games, demos and development.copperline.dev · 28 Sept 2026
- Hardware support
- It models OCS, ECS and AGA Amiga machines with 68000 through 68060 CPUs, expansion boards, hard disks and CD drives.copperline.dev · 28 Sept 2026
- Debugging
- The Debug workspace displays registers, disassembly and memory alongside the Amiga display, and supports reverse stepping from snapshots.copperline.dev · 28 Sept 2026
- Development tools
- Copperline supports scripted inputs and captures, repeatable test sessions, a JSON-RPC control protocol and debugging Amiga source code from VS Code.copperline.dev · 28 Sept 2026
- RetroArch
- Its libretro core supports A500, A1200 and CD32 software, WHDLoad, playlists, save states, four local controller ports and RetroArch netplay.copperline.dev · 28 Sept 2026
- ROM requirement
- Copperline includes the AROS open-source Kickstart replacement, though some software requires an original Kickstart ROM.copperline.dev · 28 Sept 2026
- Compatibility limits
- High-density Amiga floppy images and sector-based PC/CrossDOS images are not supported.copperline.dev · 28 Sept 2026
- Security and signing
- The macOS download is ad-hoc signed rather than notarized, so macOS may require approval on first launch.copperline.dev · 28 Sept 2026
- License
- Copperline is free software under GNU GPL v3 or later; its CPU core, the m68k crate, is MIT-licensed.copperline.dev · 28 Sept 2026
- Support
- Users can report issues or contribute fixes on GitHub and discuss configurations, demos and Amiga hardware on Discord.copperline.dev · 28 Sept 2026
- Maker
- The site identifies Andrew Hutchings, known as LinuxJedi, as the maker and says he uses real Amigas as a reference for checking emulator behavior.copperline.dev · 28 Sept 2026
- Product
- Copperline is an open-source Amiga emulator written in Rust for games, demos, and development.copperline.dev · 29 Sept 2026
- Hardware
- It models OCS, ECS, and AGA Amiga machines with 68000 through 68060 CPUs.copperline.dev · 29 Sept 2026
- ROM support
- Copperline includes the AROS Kickstart replacement; some software requires an original Kickstart ROM.copperline.dev · 29 Sept 2026
- Automation
- Copperline supports scripted inputs and captures, headless runs, and a JSON-RPC control protocol for automation.copperline.dev · 29 Sept 2026
- Integrations
- Copperline provides a libretro core for RetroArch and documentation for debugging Amiga source code with Visual Studio Code.copperline.dev · 29 Sept 2026
- Platform requirement
- The Linux AppImage requires a Vulkan driver.copperline.dev · 29 Sept 2026
- macOS signing
- The macOS download is ad-hoc signed rather than notarized, so macOS may block its first launch.copperline.dev · 29 Sept 2026
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Sources
- copperline.dev· checked 28 Sept 2026