- Python: simplestatistics
- stream-statistics, a sister project that implements many of the same measures for streaming data - as online algorithms
- science.js
- atoll.js
- jStat
- classifier is a naive bayesian classifier (though specialized for the words-spam case)
- underscore.math
- regression-js has many methods for linear regression
- math.js
- Jerzy
- vega-statistics
- datalib