Ploticus

Ploticus is a free, open-source (GPL) computer program for producing plots and charts from data.

[4] Bruce Byfield in Linux.com described Ploticus as, "...a throwback to the days when Unix programs did one thing, and did it well, using a minimum of system resources.

"[5] On December 17, 2016 or 2017, the author announced halting development and support of ploticus.

Finally on March 16, 2023, the author announced their focus shifted to DataDraw, a new project implemented in Python exposing an API to generate SVG graphs.

Features include: scaling and axes, legends, annotations, clickmap, and mouse-over support.