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: Skitch is a free screenshot annotation and editing tool for Mac and iOS. It allows you to quickly markup, crop, and share images and screenshots.
Type: software