CSave

csave is a small utility mod for minecraft classic that adds the ability to save files locally

in game you notice no change, but you are able to use the save menu. instead of this going to a minecraft.net server that is down for almost 15 years it will save your level in the minecraft_classic directory in your home folder.

the goal is to have every version of classic supported

yes, i know that there is a betacraft addon offlinedatsave, but csave is just better

and this is a jarmod, so you must add it to the jarfile