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

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

The modern Essentials suite for Spigot and Paper.

Grief Prevention

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

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

Dynamic web-based maps of your Bukkit/Spigot server

Stop Combat Log, Toggle PvP, No Kill Abuse, Newbie protection, Stop region border hopping

ServerSigns - Bind player and server commands to signs

Multiverse Inventories allows you to control who and what can cross world borders!

PowerRanks

The most used authentication plugin for Spigot and CraftBukkit!

A simple homes plugin with the ability to create, delete, and teleport to many different homes.

Intuitive and powerful plugin to create graphical user interfaces.

Create custom recipes Crafting Tables, Furnaces, Smithing Tables, and more. Support for NBT and more