Bukkit

Easily add cooldowns to any command!

Fix your tekkit server's problems.

Admin a server and Humiliate griefers, in 80 hilarious ways! Scientifically proven more effective than banning!

Automated taxes and salaries

Spawn, Home, Work, Warp, Back, Jail and TpTo commands!

A customizable plugin that backups player inventories and lets server staff to restore or export them as a shulker box.

RemoteBukkit allows admins to, with the help of a plugin, remotely use the server's console.

Command Signs

PetCreeper

/register, /login

Fully customizable voting with ban/kick/day/night/rain/sun

Let your Discord members know what's happening on your server using webhooks. Everything is configurable!

OfflineManager - Manage offline players with commands!

Teleport players to a random location. The advanced Random Teleporter

A lightweight Anti-Cheat that detects a few types of hacking

zPermissions

Common code for mmoMinecraft

Every Message Under Your Control!

jCommands - UUID Ready

[1.7.10 - 1.13.2] Similar to popular EnderChest++ but with more features and up to date.