Bukkit

Upon the breaking of the tool, you have a chance of getting some of the raw items back

MobSupaRemoval

A farm limiter and governor.

Prevent players from escaping from a battle by quiting the game.

A plugin that gives you essential commands to manage your server.

Plugin to deliver a peto to player in other world/location!

Yet another plugin library!

A small WorldEdit addon which allows you to edit signs

A Golden Item Enhancement Plugin

A "minimum players" system for Bukkit.

Adds support to BlueMap for acquiring skins from custom skin provider plugins, as well as offline-mode servers.

mwStop

Fixes/tweaks to minecraft's building mechanics

SafeFrames

A compatibility plugin for Movecraft and PlotSquared

A plugin that completely overhauls the pillager patrols in Minecraft

An addon for Skript that directly hooks into the BukkitAPI.

Fake slots number and slot limitations bypassing!

1.9+ plugin that tries to prevent boats from sinking

A lightweight, handy, fully-configurable Paper plugin that serves as core-plugin for anarchy servers.