Multicraft!

PufferPanel is an open source game server management panel designed for both small networks and game server providers. PufferPanel supports Minecraft, Spigot, Sponge, Source Dedicated Servers, BungeeCord, PocketMine and much more.

SpaceBukkit is an advanced and completely free open-source administration panel for bukkit servers. It will make all those repetitive tasks like player and plugin management, backups and server tasks fun and easy, so you can start playing minecraft again.

Bukkit Webby is a lightweight web administration that is easy and fast to setup It's made of two components :