samplesizer.com: The Best Sample Sizer

samplesizer.com (the best sample sizer) is a tool for finding the required sample size for experiments. Unlike all those other sites that do this, samplesizer.com has all the bells and whistles and let's you find the sample size for complex experiment designs, including peeking and multiple treatments within the same experiments.

For fun tech-stack stuff: this site is entirely written in R, using ambiorix.

Check it out at: https://samplesizer.com.