Dice Rollers

The WotC Dice Roller is perfect for just needing to roll a certain number of dice once. It is arguably the most straightforward online dice roller, but it seems to be biased to very high and very low results. It has several reskins on the Wizards website if color is important to you.

Random.org uses atmospheric noise for its RNG, making it, for technical purposes, superior to the RNG used by most PCs, and probably profoundly more accurate than rolling individual colored pieces of plastic.

This dice roller is more of an ongoing experiment than anything else. It shows, for example, that dice rolls are fairly well normalized on a typical RNG. While the results aren't perfect (and mathematically shouldn't be expected to be) they are all within a single standard deviation, which means that the results are typical.

My dice roller is still in the beta stage. The RNG should be reliable, there is php logging at the server level (although later versions will probably use MySQL to store roll information). Ongoing development should be seen, and an effort is being made to preserve code portability. Currently, there is no code segregation between the html and CSS, which are encapsulated in PHP, but all the code does exist in the unique namespace catcherinthesty\PHP_Dice and is fully portable. I am working on integrating other PHP conventions such as constants, more dissection of information and the ability to add disregarded data such at tags and saved rolls.