Bukkit

MyTablist

Allows signs to be edited with ease

Create your own Commands with this plugin!

JPanel - A plugin based web panel for Bukkit

A simple, highly customizable automessager.

Check for multi-accounting players via IP-Address or Player Name

Track PVP kills, ready for webstats with MySQL!

Sort chests and inventories clicking with your mouse, 1.13+ compatible

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

Supports clients modded with VillageMarkerMod

NickNamesX is a great and simple nick plugin with many plans to come!

Automated broadcast plugin.

Prism

[CHAT] mChat v1.7.10_5 - Chat formatting plugin [1060]

Lightweight, flexible, popular plugin for any Minecraft server. Forget Factions! Guilds are here!

Show WorldGuard regions on Dynmap's maps, with live update

The Complete Hub Plugin for Bukkit.

Simple plugin to clear your server's chat.

Lets you check the server lag, in ticks-per-second

Player can buy and sell and send EXP (Register, iConomy5, iConomy6, Vault)