Bukkit

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

WorldGuard

The Bukkit World Management Plugin.

Create modern looking holograms.

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

Mine spawners with silk touch

Set up custom villager shopkeepers

A working voice chat in Minecraft!

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

The modern Essentials suite for Spigot and Paper.

Stops people from breaking farmland

Dynamic web-based maps of your Bukkit/Spigot server

Grief Prevention

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

Player and Mob Heads Full-featured plugin

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

NPCs for Bukkit

Remove lag and improve the performance of your server significantly with this tool!

Portals module for Multiverse-Core

PermissionsEx