Makhber is a free interactive application aimed at data analysis and publication-quality plotting. It combines a shallow learning curve and an intuitive, easy-to-use graphical user interface with powerful features such as scriptability and extensibility. Makhber runs on GNU/Linux, Windows and MacOS X; possibly also on other platforms like *BSD, although this is untested.
Makhber is similar in its field of application to proprietary Windows applications like Origin and SigmaPlot as well as free applications like Labplot and Gnuplot.
More information, including screenshots, reviews, current contributors can be found on the GitHub project webpage.