1.PaperMC / PaperThe most widely used, high performance Minecraft server that aims to fix gameplay and mechanics inconsistenciesminecraftbukkitminecraft-serverminecraft-apiminecraft-performancetacos+4 moreJavaOther license13K total3.6K forks+16 starsfrom 12,770 · score 2.83
2.ViaVersion / ViaVersionAllows of newer clients to connect to older server versions for Minecraft servers.minecraftpluginspigotbukkitbungeecordsponge+8 moreJavaGPL-3.01.7K total360 forks+6 starsfrom 1,647 · score 1.95