JMtoXaero is a tool to convert JourneyMap tiles to regions used by Xaero's World Map - Watch the video guide
Download the latest jar from releases (video guide)
java -jar JMtoXaero-3.0.jar <input folder> <output folder> <dimension> (the_nether, overworld, the_end, all)
Input folder should point to your journeymap singleplayer or multiplayer data folder, where overworld etc resides.
Example input:
C:/appdata/.minecraft/journeymap/data/sp/2b2t_256k²_spawn_download/
Output folder should point to your XaeroWorldMap folder + server or singleplayer listing.
Example output:
C:/appdata/.minecraft/XaeroWorldMap/Multiplayer_connect.2b2t.org/
Use the last argument to select a dimension or 'all' to process them all.
java -jar JMtoXaero-3.0.jar "C:\appdata\.minecraft\journeymap\data\mp\2b2t" "C:\appdata\.minecraft\XaeroWorldMap\Multiplayer_2b2t.org" all
Used journeymap with a resourcepack other than vanilla? Read here
Newer releases of xaeros seem to have changed the world format and caused the Merger to no longer work, sorry.
Message me on Discord: Negative_Entropy#5509