Description: GnuPlot is a free, open-source graphing utility that can produce publication-quality 2D and 3D plots. It supports various plot types like line, scatter, histogram, boxplot, and contour plots. GnuPlot can also fit and manipulate data.
Type: software
Pricing: Open Source
Description: Vectorian Giotto is a free, open-source vector graphics editor for Windows, Mac and Linux. It provides a simple and intuitive interface for creating 2D illustrations, diagrams, charts, logos and more. Key features include versatile shape tools, gradient and pattern fills, text support, and export to common image formats.
Type: software
Pricing: Open Source