Testimonials

In several things that I do, I require some form of randomness (for example, secure primary keys for databases, with almost no chance of collision error). To do this, I use your site to create them. A simple generation of numbers between 0 and 35, and then change them into their base-36 equivalent, however long the sequence needs to be, and you have an virtually unguessable primary key sequence. You can’t guess what the next key in the sequence will be. Very useful for keeping people from being able to hack your customer list and finding out who does business with you (they might be able to guess one, but the next won’t be sequential, so they would have to start all over again to find the next). I also use it in my writing, to generate datasets for locations and people by assigning integers to various items and using the site to pick the ones that apply.

—John Anderson

When giving a quiz or test, I like to allow the students to choose 6 out of 7 (for example) of the questions I ask, so that they can have one ‘free’ one if they don't know it. Invariably, some students answer all 7. Your website makes it so much easier to deal with this problem (and now the students know I use your site and that I won't just let a wrong answer stand for the one they should have omitted).

—David Webb, University of Mississippi