Hello!

This is an overhauled version of Hypixel's Resource Pack Converter, updated to fix many of the bugs that their software had introduced. This version also updates to the latest update of Minecraft Java Edition: (as I'm writing this) 1.19.3
To run the software (from 1.2 to 1.13), run this command with the pack in the same folder as the jar:
java -jar ResourcePackConverter.jar


There are also some handy parameters to control versions to convert to! Try using something like this where (from) is the version you want to convert from (base versions) like 1.15.2 and (to) is the version you want to convert to (like 1.17.1)
java -jar ResourcePackConverter.jar --from (from) --to (to)
With the 1.15.2 update, there is a new feature with lighting. To use this feature with older versions, add this parameter to your run command:
--light (front)or
--light (side)
If running Java Commands is not something you like doing, I recently created a program with a GUI that will make it easier to run. That is available at https://www.planetminecraft.com/mod/resource-pack-converter-gui/

Thanks, agentdid127


(also, if you come across any bugs, please add an issue at https://github.com/agentdid127/ResourcePackConverter/issues)


If the Download Link does not work for whatever reason,
This should work for you.
https://github.com/agentdid127/ResourcePackConverter/releases