Bukkit

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

WorldGuard

A working voice chat in Minecraft!

Set up custom villager shopkeepers

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

Make Things go Boom

Marriage Master

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

The Bukkit World Management Plugin.

This is a easy to use GUI shop plugin.

Dynamic web-based maps of your Bukkit/Spigot server

The modern Essentials suite for Spigot and Paper.

Stops people from breaking farmland

NPCs for Bukkit

The most used authentication plugin for Spigot and CraftBukkit!

If you've ever used the VeinMiner mod for minecraft Forge, it has now been recreated for Bukkit, CraftBukkit, and Spigot

Modern Minecraft death chest plugin for Bukkit, Spigot, and Paper servers.

CS-CoreLib

4700+ unique structures available to /paste into your server

Toggle PvP for your players, stop combat log, protect newbies, stop border hopping and more!