FooPlot
- Online 2D and 3D plotter with root and intersection finding, easy scrolling, and exporting features.
- http://fooplot.com/

FN Graph
- Plotting program includes a customizable coordinate system, several graphs in a document, and shell integration. Supports basic arithmetic operators and a variety of other formulas. Contains tools for function evaluation, analysis and integration.
- http://old.ournet.md/~fngraph/

GetData Graph Digitizer
- Allows the user to digitize a scanned graph and save the results in ASCII file or export to formats of other applications. Windows; 21-day free trial.
- http://getdata-graph-digitizer.com/

Gus and Gertie's Graphin' Gadget
- Commercial package supporting Cartesian, parametric, and polar graphs. Many graph attributes can be customized, including color, line thickness, and zoom level.
- http://www.somewareinvt.com/Someware_in_Vermont/Gus_and_Gertie/gusandgertie.htm

VisuMap
- A non-linear visualization program for dimensional data. It converts table of data to 2D/3D maps by combining multidimensional scaling and clustering methods.
- http://www.visumap.net/

CurvFit
- A curvefitting program with Lorentzian, Power, Exponential, and Sine fitting models. Free download of windows executable.
- http://digitalcalculus.com/site/1523506/product/Fit-5

Plot 3D
- 2D and 3D function graphing. Includes freeware download, and a gallery of output. [Windows 98-XP]
- http://www.plot3d.net/

DeadLine
- Free windows software performing graph plotting and root-finding for algebraic functions. Site includes a features list and tutorial.
- http://deadline.3x.ro

MultyGraphiX
- Generate 2D and 3D plots of explicit and parametric functions, in various coordinate systems. Site provides screenshots, features list, and alows download of an evaluation copy.
- http://multygraphix.gracebyte.com/

Aabel
- Statistical and Graphing Software for Mac OS X. Site provides screenshots and features list, together with pricing details and online ordering facility.
- http://www.gigawiz.com/

Create a Graph
- Web-based graphing tool for producing bar, line, pie, and area charts from small sets of discrete data.
- http://nces.ed.gov/nceskids/graphing/

Quisoft's Visualizer
- Web-based application for producing graphs of mathematical functions. [may not work in all browsers]
- http://www.quisoft.com/

MathGrapher
- Mathematical graphing tool for 2D and 3D functions and data. Also includes statistical tools, nonlinear curve fitting, integration of coupled ordinary differential equations, and cellular automata.
- http://www.mathgrapher.com/

Equation Grapher
- Function graphing software for windows, aimed at high-school pupils. Purchase online.
- http://www.hanleylearning.com/

MoNooN Grapher
- A collection of graphing programs, for plotting functions in 2D and 3D, rectanguluar and polar coordinates. [Windows shareware]
- http://www.monoon.com/

RJS Graph
- Produces scientific and mathematical graphs, and provides a range of data analyzing tools (including regression lines) with graph export facilities. [Windows freeware]
- http://www.rjsweb.fsnet.co.uk/graph/

Analyzer
- Function plotting program for windows. Site gives features list, screenshots, and allows download of a shareware version.
- http://www.freeweb.hu/gmg/

plotutils
- A GNU package for producing 2D plots in a variety of formats, built around an enhanced libplot C/C++ function library. Site provides links to documentation and other related software.
- http://www.gnu.org/software/plotutils/

Grace
- A WYSIWYG 2D plotting tool for the X Window System and M*tif. Ports to other systems (including windows) are also available. Site includes features overview, full documentation, and downloads.
- http://plasma-gate.weizmann.ac.il/Grace/

ACE/gr
- A 2D plotting tool for X Window System, with ports to other systems available. Also known as xmgr, this software is now superseded by Grace.
- http://plasma-gate.weizmann.ac.il/Xmgr/

WestSide
- Series of charting programs for processing numeric data to produce graphs. Supports two and three-dimensional graphing and contour plotting.
- http://hp.vector.co.jp/authors/VA010465/

PGPLOT Graphics Subroutine Library
- The PGPLOT Graphics Subroutine Library is a Fortran- or C-callable, device-independent graphics package for making simple scientific graphs.
- http://www.astro.caltech.edu/~tjp/pgplot/

Ploticus Data Display Engine
- An alternative to gnuplot, GPL, command-line, with various style options. Program can plot date, time, and category data directly. [Unix/Win32]
- http://ploticus.sourceforge.net/

Graphe Easy
- 2d-graph plotting Windows software. Free demo version download.
- http://grapheeasy.alrj.org/

Rt-Plot
- A tool to generate Cartesian X/Y-plots from scientific data. View the changing graphs, including linear and non linear regression, interpolation, differentiation and integration, during entering.(Shareware)
- http://www.rt-science.de/rt-plot.html

3DMath Explorer
- Plots 2D and 3D graphs of mathematical functions and curves. Windows; 30-day limited trial version.
- http://www.teber.biz

GLgraph
- An OpenGL based function grapher for Linux, handling 3 unknowns (x,z,t) and producing a 4D function with 3 space and 1 time dimension. Free under GPL.
- http://glgraph.kaosu.ch

CurvusPro
- Macintosh equation-plotting software supporting both 2D and 3D graphs. Supports implicit functions, differential equation solutions, and vector fields.
- http://www.curvuspro.ch/

GUIPlot
- Creates X-Y data plots and histogram charts. Includes free demo download.
- http://www.guiplot.com/

Jpowered.com Bar Graphs
- Creates two and three dimensional vertical bar, horizontal and stacked charts from files, databases scripts and server side processes. Lists features. Includes examples and free download demo.
- http://www.jpowered.com/bar_graph/

Digitize It
- Shareware that automatically pulls in numerical data from scanned graphs and transferred to a specified axes system. Can be saved in ASCII format, ready to use in other applications. Is able to import files from most image formats (gif, png, tiff,bmp). Ru
- http://www.digitizeit.de/

Graphis
- Graphing and visualization program for 2D and 3D data. Description of features, gallery of plots, and free demo version to download. [Windows]
- http://www.kylebank.com/

KaleidaGraph
- Software for graphing and data analysis. Windows, MacOS. Purchase on-line or download free trial version.
- http://www.synergy.com/

FitAll
- General purpose nonlinear regression analysis (curve fitting) tool from MTR Software. Windows. Free download of evaluation version.
- http://www.fitall.com/

DPlot
- General purpose plotting program. It features multiple scaling types, several special purpose plots: tripartite grids, grain size distribution plots, polar plots, and contour plots of 3D data. Manipulation functions include FFT, filtering, smoothing.
- http://www.dplot.com/

Cradle Fields
- A programming tool to plot and explore two dimensional math functions, such as cartesian y(x) and x(y) graphs, parametric and polar ones. Allows the user to have control over a coordinate space through interactivity of all the components of the graph.
- http://www.cradlefields.com/

GraphPad Prism
- Combination of basic biostatistics, curve fitting and scientific graphing in one program. Available for Windows or Macintosh.
- http://www.graphpad.com/prism/Prism.htm

Autograph
- PC software for teaching calculus, coordinate geometry, statistics and probability.
- http://www.autograph-math.com/

DPGraph
- Visualization program supporting graphs in up to eight dimensions. Coded entirely in assembly language for optimized speed.
- http://www.dpgraph.com/

MathGV
- Mathematical function graphing software program for Windows. It can plot 2 dimensional, polar, and 3 dimension functions. Freeware.
- http://www.mathgv.com/

Plane Graphic Calculator
- Java applet that can interactively plot the graph of mathematical functions. Handles complex numbers, vectors, and parametric equations.
- http://www.accesscom.com/~lillge/pgc

IGOR Pro
- An interactive environment for experimentation with scientific and engineering data and for the production of publication-quality graphs and page layouts using Macintosh and Windows computers.
- http://www.wavemetrics.com/

Graphmatica
- Equation plotter featuring symbolic differentiation and tangent lines. Graphs can be printed, copied to the clipboard, and saved as BMP or WMF files. Shareware.
- http://www8.pair.com/ksoft/

Pacific Tech Graphing Calculator
- Symbolic and numeric methods for visualizing two and three dimensional mathematical objects. Supports differential equations and integration. Available for Macintosh and Windows.
- http://www.pacifict.com/

3D Grapher
- Plotting and data visualization programming for graphing and animating 2D and 3D equations and table charts. Allows some customization.
- http://www.romanlab.com/3dg/

DataFit
- Curve fitting and data plotting software. Accuracy of nonlinear regression results verified with NIST.
- http://www.oakdaleengr.com/

HandyGraph
- Provides a convenient method to create and edit grids, blank graphs, and number lines within Microsoft Word. Free downloadable demo, Windows and Mac versions available.
- http://www.handygraph.com/

GrafEq
- Program for graphing implicit relations. Designed for high school use, Windows and Mac evaluation versions available for download.
- http://www.peda.com/grafeq/

Dr. Hanley's Science Graphs
- Software for graphing equations and data. Supports multiple curves as well as parametric graphs. Plus version can graph multi-color contour lines.
- http://www.hanleyinnovations.com/sgraph.html