  $\chi$iplot is an HTML5-based system for interactive exploration of data and
machine learning models. A key aspect is interaction, not only for the
interactive plots but also between plots. Even though $\chi$iplot is not
restricted to any single application domain, we have developed and tested it
with domain experts in quantum chemistry to study molecular interactions and
regression models. $\chi$iplot can be run both locally and online in a web
browser (keeping the data local). The plots and data can also easily be
exported and shared. A modular structure also makes $\chi$iplot optimal for
developing machine learning and new interaction methods.
