data-forge
JavaScript data transformation and analysis toolkit inspired by Pandas and LINQ.
datakit
Simple JavaScript toolkit for data transform across JSON, CSV and YAML.
dataherd-raika
"Dataherd-Raika is a library designed to simulate large-scale user behavior datasets. It takes a single user event (like a click or keyword input) and, by applying simple probability distributions and custom variables, expands it into a vast dataset."