How to Migrate a Modpack Between Launchers
Moving from CurseForge to Prism? From MultiMC to ATLauncher? The converted ZIP is the lingua franca between them all.
The universal workflow
Export the source pack
If the source launcher has an "Export modpack" feature, use it. Otherwise locate the instance folder and copy
mods/,config/, etc.Zip the folder
Create a ZIP with these folders at the root, mirroring the layout our converter produces.
Import into the target launcher
Follow the relevant per-launcher guide (CurseForge, Prism, MultiMC, etc.).
Keep settings between migrations
Also copy options.txt (controls), servers.dat (server list), and saves/ (worlds) if you want to preserve gameplay state.