McMyAdmin - McMyAdmin is a web interface and administration utility for Minecraft Survival Multiplayer (SMP)...
Pterodactyl - Pterodactyl is the free game server management panel designed by users, for users.
Crafty Controller - Crafty is a wrapper for a Minecraft server which runs in the background.
MineOS CRUX - MineOS CRUX is a specialized distribution with a specific goal: To provide the ultimate server...
Pufferpanel - It's made for hosting your Minecraft server. It's open source.
SpaceBukkit - SpaceBukkit is an advanced and completely free open-source administration panel for bukkit servers.