The best open source alternative to Matplotlib is GnuPlot. If that doesn't suit you, our users have ranked more than 50 alternatives to Matplotlib and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Matplotlib are Plotly, LabPlot, SciDaVis and python(x,y).
Gnuplot is a portable command-line driven interactive data and function plotting utility. It was originally intended as to allow scientists and students to visualize mathematical functions and data. It does this job pretty well, but has grown to support many non-interactive...
Plotly is the easiest way to graph and share data online. Open-source libraries for JavaScript (comparison with HighCharts at https://plot.ly/highcharts-alternative/), Python, R, and MATLAB.
LabPlot is a free, open source and cross-platform Data Visualization and Analysis software accessible to everyone and trusted by professionals.
SciDAVis is a free application for Scientific Data Analysis and Visualization. It's an application aimed at data analysis and
Python(x,y) is a free scientific and engineering development software for numerical computations, data analysis and data visualization based on Python programming language, Qt graphical user interfaces and .
Bokeh is a Python interactive visualization library that targets modern web browsers for presentation. Its goal is to provide elegant, concise construction of novel graphics in the style of D3.js, but also deliver this capability with high-performance interactivity over very...
JFreeChart is a free 100% Java chart library that makes it easy for developers to display professional quality charts in their applications.
Core Plot is a 2D plotting framework for Mac OS X and iOS. It is highly customizable and capable of drawing many types of plots
Giac/Xcas is a free computer algebra system for Windows, Mac OS X and Linux/Unix (license GPL3, for commercial dual-license contact us).
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