Bukkit

Player controlled property protection and sales

Easy to use (offline-mode) login authentication plugin

Plugin provides 2FA (TFA, TOTP) on minecraft servers.

An addon to Orebfuscator to prevent X-RAY hacks

A plugin that stops ender dragon griefing and spawns

Manage warnings to players in game for those who don't want automatic player reprimands

Plugin for disabling and protecting against duped items on your server!

Send email reports to your admin.

Vip-God allows you to give god-permissions to VIPs without being afraid that they kill everybody

Log players actions !

LokiBlocker

Item banning plugin

NoTNT-AntiTNT

Talk with other admins/operators privately!

Creative Item frame Control

Prevent spam bot attacks easily.

MyPVP

Be invisible while sneaking!

Allow staff members on your server to go into staff mode, giving them access to a few tools used for server administration

This plugin adds many useful comands.