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 is the most popular Web-based, Windows, Android & Mac alternative to GraphSketcher.
- - GeoGebra is the most popular free alternative to GraphSketcher.
SageMath is a free open-source mathematics software system licensed under the GPL. It builds on top of many existing open-source packages: NumPy, SciPy, matplotlib, Sympy, Maxima, GAP, FLINT, R and many more.
- - SageMath is the most popular Open Source alternative to GraphSketcher.
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...
matplotlib is a python 2D plotting library which produces publication quality figures in a variety of hardcopy formats and interactive environments across platforms. matplotlib can be used in python scripts, the python and ipython shell (ala MATLAB®* or Mathematica®†)...
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 .
The project seems no longer developed. Last version, 18.104.22.168, released in June 2015, can be still downloaded from the official website.
Grafio allows you to make flow charts, org charts, Venn diagrams, mind maps, take notes, sketches and do other diagrams. Everything is custom and modifiable.
- - Grafio is the most popular commercial alternative to GraphSketcher.
NumeRe, the cutting-edge open source software, is your ultimate solution for scientific data analysis. Built on a versatile approach, it seamlessly combines powerful statistical and numeric capabilities, optimized specifically for scientific applications.
GraphCalc is an all-in-one solution to everything from everyday arithmetic to statistical analysis, from betas to Booleans, from cubes to calculus, from decimals to derivatives. GraphCalc combines all the features of a professional mathematics package with the simplicity of an...Discontinued
The project was abandoned. Last version, 4.0.1, released on November 24, 2003, can be still downloaded from the official website.
KAlgebra is a mathematical graph calculator included in the KDE education package. While it is based on the MathML content markup language, knowledge of MathML is not required for use. The calculator includes numerical, logical, symbolic, and analytical functions, and can plot...
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.
latest version is 4.4.2 (2013)https://sourceforge.net/projects/graph/files/Graph/