Bukkit

WorldGuard

Mine spawners with silk touch

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

Keep your inventory in a chest when you die !

Expand the capabilities of Skript with skRayFall

Player and Mob Heads Full-featured plugin

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

Lop off Player and all Mob Heads with configurable drop rates + pvp-farming nerf, includes detailed commands and permissions

Inexpensively protects your ores from cheaters.

Detect and fight the exploitation of various flaws/bugs in Minecraft!

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

Override /server

The free anti-cheat solution since 2016

Makes combat work like before 1.9, with no weapon cooldown etc.

Speed up Leaf Decay

Lightweight Essentials! useful commands and features for Minecraft! [Lightweight Essentials]

WildSkript

Orebfuscator - Anti Xray

This plugin adds the Kotlin libraries to the server, making plugins written in Kotlin usable by the server

CombatLog aims to punish players who log out to escape combat.