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

PermissionsEx

WorldGuard

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

The Bukkit World Management Plugin.

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

The essential plugin for Spigot servers.

Create modern looking holograms.

The most used authentication plugin for Spigot and CraftBukkit!

Dynamic web-based maps of your Bukkit/Spigot server

Plugin Manager For Bukkit

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

Mine spawners with silk touch

Grief Prevention

An intuitive and powerful plugin to create graphical user interfaces.

The best chest&sign shop system for Bukkit

The premier long-range map editing tool for Minecraft SMP.

Allows server admins to easily modify how Minecraft works without programming anything

Easily add commands to NPC's! [1.8-1.12] (BungeeCord Support | Citizens 2)