Brightstat.com has been completely redesigned as a web application for statistics and data visualization.
Unfortunately existing users need to create a new account. If you want to use the previous version of brightstat click here. The previous version will be available until end of 2015.
Visualizer is now available as web application for free. Click here.
Click here to go to brightstat's web application open a sample data file and test it right away (no login required)
If you happen to be a statistician and if you happen to have identical twins, don't forget to put one in the control group.
Stricker, D. (2008). BrightStat.com: Free statistics online. Computer Methods and Programs in Biomedicine, 92, 135-143.