Bukkit

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

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

WorldGuard

PermissionsEx

The Bukkit World Management Plugin.

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

A collection of useful commands and features for server admins and players.

Create modern looking holograms.

The essential plugin for Spigot servers.

NPCs for Bukkit

The most used authentication plugin for Spigot and CraftBukkit!

Set up custom villager shopkeepers

Portals module for Multiverse-Core

Dynamic web-based maps of your Bukkit/Spigot server

Grief Prevention

Plugin Manager For Bukkit

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

CS-CoreLib

Mine spawners with silk touch

An intuitive and powerful plugin to create graphical user interfaces.