Copperline review
A broad, free Amiga emulator with browser access, debugging, and rollback Netplay.
Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
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 OCS, ECS, and AGA configurations, with machine profiles from the A1000 through the A4000, plus CDTV and CD32. That makes it a strong fit for users who want one emulator for classic software, development work, and hardware-oriented experimentation.
Its standout strength is the combination of broad system coverage and advanced control. Copperline supports save states, rewind history, rollback Netplay with spectators, and multiple floppy-image formats including ADF, ADZ, single-file ZIP, DMS, extended ADF, IPF, and SCP. Reverse debugging, register and memory inspection, command-line scripting, and JSON-RPC control give developers and technical users tools beyond basic game launching. The RetroArch/libretro core also connects Copperline with RetroArch, while Visual Studio Code is listed as an integration.
Copperline’s main consideration is ROM handling. An open-source AROS Kickstart replacement is included, but original Commodore Kickstart ROMs are not; some software requires users to supply an original ROM. Disk images and some ROMs must also be supplied by the user. Buyers who want browser access, extensive Amiga model coverage, Netplay, and debugging should find Copperline well aligned with those needs. Users seeking a simpler emulator focused only on launching a small set of games may prefer a narrower tool.
Questions about Copperline
What does Copperline run on? Web, Windows, macOS and Linux. It runs as a desktop app.
What does Copperline integrate with? 2 integrations: RetroArch and Visual Studio Code.
Who is Copperline built for? Solo users and small businesses (our editorial estimate).
Copperline pros and cons
- 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
Copperline fact sheet, pricing and score →
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Last updated · How we research and update