Octave is a computer program for performing numerical computations which is mostly compatible with MATLAB . It is part of the GNU Project. It is free software under the terms of the GNU General Public License.

The best free alternative to GnuPlot is GNU Octave, which is also Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to GnuPlot and loads of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to GnuPlot are Matplotlib, GeoGebra, LabPlot and Desmos.
Octave is a computer program for performing numerical computations which is mostly compatible with MATLAB . It is part of the GNU Project. It is free software under the terms of the GNU General Public License.

Matplotlib is a comprehensive library for creating static, animated, and interactive visualizations in Python. Matplotlib makes easy things easy and hard things possible.






GeoGebra is free and multi-platform dynamic mathematics software for learning and teaching. It has received several educational software awards in Europe and the USA.




GeoGebra does not run in text-only, i.e. headless mode, which is the primary usage scenario of GnuPlot.


LabPlot is a free, open source and cross-platform Data Visualization and Analysis software accessible to everyone and trusted by professionals.




Explore math with the fast and powerful Desmos Graphing Calculator. Plot any equation, from lines and parabolas to derivatives and Fourier series. Add sliders to demonstrate function transformations, create tables to input and plot data, animate your graphs, and more—all for...




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 .

SciDAVis is a free application for Scientific Data Analysis and Visualization. It's an application aimed at data analysis and

With Grapher, you can graph equations and data sets and visualize the results on your Mac in real time. Grapher displays algebraic relations, both implicit and explicit, in 2D and 3D. You can use a variety of coordinate systems and choose from a wide array of mathematical...

Giac/Xcas is a free computer algebra system for Windows, Mac OS X and Linux/Unix (license GPL3, for commercial dual-license contact us).

Graph is an open source application used to draw mathematical graphs in a coordinate system. Anyone who wants to draw graphs of functions will find this program useful. The program makes it very easy to visualize a function and paste it into another program.

Kst is a fast, real-time large-dataset viewing and plotting tool available and has built-in data analysis functionality.

Open source framework for numerical computations and advanced statistical analysis, featuring nonlinear curve fitting, ODE solving, 1D/2D publication-quality visualization, Fourier and wavelet transforms, intuitive syntax, and namespace-based code organization for research.




NumeRe provides a similar (but not the same) syntax to plots and function definitions as GnuPlot. A similar powerful Levenberg-Marquart least squares is also available but the data management and data evaluation functionalities are far more elaborate than GnuPlot. We used GnuPlot in the past as well and we still suggest it as the goto alternative for plotting, if NumeRe is not available.


It is open source and plots can be included in the python programs unlike in GNUPlot