Bukkit

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

Dynamic web-based maps of your Bukkit/Spigot server

Create modern looking holograms.

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

CoreProtect

ServerSigns - Bind player and server commands to signs

[UNMAINTAINED] Intuitive and powerful plugin to create graphical user interfaces.

Get custom items on join.

Simple & Effective Staff Utility To Freeze Players! [Very Customizable] When player's give you lemons, freeze them & make Ice Lemon Tea!

The best chest&sign shop system for Bukkit

Hub - Plugin

[UNMAINTAINED] Display an RPG-style health bar above mobs and players.

The Complete Hub Plugin for Bukkit.

Make your own, customized Minecraft commands

HideStream - updated! - Simple, lightweight, effective.

A plugin to warn your players when your server will restart!

CraftBook adds a number of original gameplay elements to Minecraft from integrated circuits to gates

Change the colour of the server chat!

Use the player list tab!

The official InventorySee plugin by TehCoderHD!