Bukkit

WorldEdit is an in-game map editor for both creative and survival

WorldGuard

Set up custom villager shopkeepers

The Bukkit World Management Plugin.

Toggle PvP for your players, stop combat log, protect newbies, stop border hopping and more!

Grief Prevention

Vault is a Economy/Permission plugin for hooking into the various Economy and Permission plugins.

Fully customize any mobs (and create custom mobs) with a powerful scripting skill system, attributes, equipment, special AI, and much more, along with custom spawners and spawning rules. The ultimate plugin for making RPG servers and minigames.

The modern Essentials suite for Spigot and Paper.

[UNMAINTAINED] Create modern looking holograms.

A new perfect way to clear common lagg in your server!

Stops people from breaking farmland

Keep your inventory in a chest when you die !

A working voice chat in Minecraft!

A free and reliable backpack plugin with lots of customisation options.

CS-CoreLib

Mine spawners with silk touch

Open anyone's inventory as a chest in real time!

Portals module for Multiverse-Core

Player and Mob Heads Full-featured plugin