An easy to use GUI for remapping classes, methods, and fields of compiled java programs.
For information on how to use JRemapper and other details about it, check out the wiki.
The TLDR usage is as follows:
Control + NOpen a jar file
Control + OOpen mappings file
Control + EExport jar file (mappings are applied to output)
Control + SSave mappings to file (Json)
Control + ZUndo mapping change
Control + YRedo mapping change
NNavigate to selected item
BackspaceGo to last item
See the releases page for the latest build, or compile it yourself with