Hammerman's Drop Calculator - Find your chance (percentage) to find any type of item on any monster from Diablo II: Lord of Destruction, on any difficulty level.
Diablo II & LoD Realm Character Guardian - A very small download, yet a useful utility for managing Realm characters so that the 90 day timer doesn't run out, preventing the characters you don't play often from being removed by the Battle.Net servers automatically.
Talifer's Rune Wizard (361KB) - Handy utility for referencing Diablo II: Lord of Destruction Rune Items (Runewords).
Diablo II Encyclopedia - A large program allowing you to reference many statistics and information about Diablo II.
Diablo II Backup Tool (825 kB) - A nice little tool that allows you to safely backup your single/open Diablo 2 characters. It's easy to use and fast to install, with several advanced features such as Autosave and up to 99 backup copies of your characters.
Java Battle.net Bot 1.1.0 (122 kB) - This program allows you to moderate your Battle.net channels. Javabot is designed to run on any operating system that runs Java, including the Macintosh.
TopazChat v 6.31 (1.3 MB) - A stand-alone program that connects to battle.net and allows you to chat without using StarCraft or Diablo.