Bukkit

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

WorldGuard

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

Grief Prevention

Stops people from breaking farmland

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

LoginSecurity

The most used authentication plugin for Spigot and CraftBukkit!

FastAsyncWorldEdit

CoreProtect

bPermissions

CrazyLogin

Orebfuscator - Anti Xray

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

Guilds, war, land claiming, and user-controlled antigrief

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

Seeing light in your darkest hour

Inexpensively protects your ores from cheaters.

a feature-rich world size limiting plugin, which can also generate or trim a world to your border

High-Performance Anti X-Ray plugin