Rolz is described as 'offers free tools for rolling dice for RPG players and dungeon masters featuring scores of randomization tools including random name and character generators and an API for developers to make use of those tools'. There are more than 10 alternatives to Rolz, not only websites but also apps for a variety of platforms, including Android, Android Tablet, Windows and iPhone. The best alternative is Roll20, which is free. Other great sites and apps similar to Rolz are Randomlyst (Free), Random-Required (Free, Open Source), Random Item Picker (Paid) and Yahtzee Master (Free).
Roll20 is the free, easy way to play tabletop games (such as pen and paper RPGs) online with others. It's completely web-based, so it runs right in your browser. It supports video and voice chat, background music, character sheets, a massive art library, and more!
Randomly pick items and remove duplicates from large lists. Different probabilities can be assigned to each item and items can be picked in groups or individually. There is ability to pick same items multiple times, sort and shuffle lists, and more!.
Alt Dice: Virtual dice roller ideal for replacing ordinary dice used in tabletop, RPG, and board games. It is also perfect as: First player chooser, Decision Roulette, and Love Dice. Create dice with custom colors, labels, sounds and up to 99 sides.
The most beautiful and fully-featured dice roller! Dynamic Dice features a high resolution physics simulation and smooth OpenGL based 3D rendering, coupled with a clean UI allowing you to switch dice easily as needed!