gnuplot

If you've ever needed a powerful, flexible tool to create graphs and plots, Gnuplot might just be your new best friend. It’s a command line driven graphing utility that works across tons of platforms whether you're on Windows, Linux, macOS, or even more niche systems.

What makes Gnuplot really stand out is its versatility. You can generate both slick 2D plots and eye catching 3D visualizations, and even animate them to bring your data to life. Once you're happy with your creation, you can export it in all sorts of formats like PNG, SVG, JPEG, or EPS perfect for reports, websites, or presentations.

It supports a bunch of output options too:

Want to see your graph right away? Use the interactive screen display with support for Qt, wxWidgets, or system specific options like Windows or OS/2. Prefer saving to a file? Go for PostScript, PDF, PNG, GIF, JPEG, LaTeX, or even SVG. And if you're building for the web, Gnuplot has got you covered with HTML5 and SVG outputs.

Originally, Gnuplot was designed to help scientists and students visualize math functions and data on the fly. But over the years, it’s evolved way beyond that. These days, it’s not just for interactive use it’s also fantastic for scripting and automation, and it even acts as the plotting engine behind other apps, like GNU Octave.

So whether you're crunching numbers for research, designing visuals for a project, or just love playing with data, Gnuplot offers a reliable, no fuss way to make your graphs look great.