ā ļø Important: Resource Packs Only
This tool is designed for merging Resource Packs (.mcpack) only.
.mcaddon files cannot be merged because they contain multiple pack types (resource packs + behavior packs) with complex interdependencies that cannot be safely combined automatically.
If you need to combine .mcaddon files, you must manually extract them and merge each component pack separately.
Choose two .mcpack/.zip resource pack files to merge. This runs entirely in your browser; no files are uploaded to a server.