100% Free Statistical Softwares

General Purpose Statistical Softwares

These Statistical Software provides a wide variety of statistical Analysis. The following list of softwares are completely free and can be used in their fully-functional mode.


OpenStat is a general purpose stats software/package. It supports all windows versions (Windows XP, Windows 7, Windows 8). It is also available for Linux Systems (under Wine). This software is developed by Bill Miller of Iowa State U, with a very broad range of data manipulation and analysis capabilities. It has SPSS like user interface. This software has excellent reference material and video tutorials.

Download Software OpenStat
Download Sample Data files
Download Help Files

OpenStat's Tutorials
  • The use of OpenStat to create a file and do several analyses Tutorial1.zip.
  • Importing Excel file data into OpenStat Tutorial2.zip.
  • Use of Multiple regression analysis with OpenStat Tutorial3.zip.
  • Creating a professional-looking output document in OpenStat Tutorial4.zip.
  • The relationship of Analysis of Variance to Multiple Regression Tutorial5.zip.
  • The use of Simulation procedures in OpenStat Tutorial6.zip.
  • Power Point presentation on the use of the Select Cases in OpenStat Tutorial7.zip.
  • Converting string group codes to integer group codes and the Recode option, Tutorial8.zip.
  • Degrees of freedom and how correlation and multiple regression are affected DegreesOfFreedom.ppt.

SalStat-2 is a statistical software written in Pathon language having a graphical user interface. It is a multi platform, easy-to-use statistical system that provides data management such as importing, editing, pivot tables. It provides wide range of Numerical Statistical Calculations such as descriptive statistics, probability functions, chi-square, t-tests, One-way ANOVA, Regression Analysis, Correlation, non-parametric tests, Six-Sigma.

It has a graphic system inherited from matplotlib and can produce bar, line, scatter, area, histogram, box&whisker, stem, adaptive, ternary scatter, normal probability, quality control graphs.

Download Mac Version: Final Portable Mac OSX S2 V2.1
Download Windows Version: Final Windows version S2 V2.1

SOFA (Statistics Open For All)

SOFA is an innovative statistics analysis, reporting package and user friendly open source software. It is available for Windows, Mac and Linux systems.SOFA Has an emphasis on ease of use, learn as you go, and beautiful formatted output. It can help you if you are a researcher, student, data analyst or anyone who want to understand their data

Download SOFA Ubunto Linux version
Download SOFA Windows version
Download SOFA Mac version

For SOFA Youtube Videos visit Video Tutorials


ViSta is a Visual Statistics program can runs under Windows, Mac and Unix available in three languages English, Spanish, and French. ViSta can perform univariate and multivariate visualization and data analysis. ViSta constructs very-high-interaction, dynamic graphics that show you multiple views of your data simultaneously. The graphics are designed to augment your visual intuition so that you can better understand your data.

Download Windows version (English)
Download Mac version (English)
Download Unix version (English)

Visit for: Lecture Notes on Statistics and Data Analysis with Vista


PSPPis a free replacement for SPSS although at this time it implements only a small fraction of SPSS's analyses. But it never "expire". It closely look like SPSS, and even reads native SPSS syntax and files!

Some features...
  • Supports over 1 billion cases and over 1 billion variables.
  • Choice of terminal or graphical user interface
  • Choice of text, postscript or html output formats.
  • Inter-operates with Gnumeric, Open Office and other free software.
  • Easy data import from spreadsheets, text files and database sources.
  • Fast statistical procedures, even on very large data sets.
  • No license fees; no expiration period; no unethical “end user license agreements”.
  • Fully indexed user manual.
  • Cross platform; Runs on many different computers and operating systems.
Download PSPP Windows Version
Download PSPP Documentation


OpenEpi is a free web based open source program for use in public health and medicine. It Provides number of epidemiologic and statistical tools. It can be run from a web server or downloaded to run without internet connection. The programs are written in JavaScript and HTML. It provides stratified analysis with exact confidence limit, matched pair and person-time analysis, sample size, power test, sensitivity, R x C tables, chi-square for dose-response etc.

Download: OpenEpi

Installation Instructions:
  • Download and unzip the OpenEpi.zip file. Be sure you have "OpenEpi" folder after unzipping the file, Otherwise rename it as OpenEpi.zip .
  • To use the OpenEpi program find and double click the index.html file.
  • Enter the data in given required tables
  • Save the output from browser's File menu by using Save as command.

Statext Provides a nice assortment of basic statistical tests, with text output its graph output are text-based. Capabilities include: Data can be rearrange, transposed, and tabulated; Similarly random sample, basic descriptive, Graphs such as dot plot (text based), box-and-whiskers plot, stem-and-leaf display, histogram, scatter-plot, Parametric tests such as find z-values, confidence interval for means, t-tests (one group, two group, and paired); one- and two-way ANOVA, Pearson, Spearman and Kendall correlation, linear regression Analysis, Non-Parametric tests such as Chi-square goodness-of-fit and independence tests, sign test, Mann-Whitney U and Kruskal-Wallis H tests, probability tables such as z, t, Chi-square, F, U, random number generator, Central Limit Theorem, Chi-square distribution.

Since Statext is built on .NET Framework 2.0, so if you do not have .NET Framework in your computer system, Statext does not work. Download and install the Framework first.

Download Statext You can also buy Statext software at cheap price.


MicrOsiris is a comprehensive statistical and data management package for Windows, derived from the OSIRIS IV package developed at the University of Michigan. MicrOsiris have special statistical techniques for data mining and analysis of nominal, ordinal and scaled data.

It can handle any size data set. It has Excel type data entry. SPSS, SAS and Stats data sets can be imported or exported. MicrOsiris reads ICPSR (OSIRIS) and UNESCO (IDAMS) datasets, interactive decision tree for selecting appropriate tests, database manipulation extensive statistics such as scatter-plot, cross-tabs, ANOVA/MANOVA, log-linear, correlation/regression, perform logistic, linear, Tobit, Poisson, and proportional hazard regression, cluster, factor, MINISSA, item analysis, survival analysis, internal consistency. Fully-functional and freeware.

Download MicrOsiris
MicrOsiris requires a processor which includes the SSE3 instructions. Although all modern processors have SSE3 instruction but, if you are in doubt you can download and run CPU_Z software to find out if your computer has these instructions.


Gnumeric is free, fast and accurate high-powered spreadsheet with better statistical features than Microsoft Excel. It has has about 60 extra functions as compared to Excel, with basic support for financial derivatives including Black Scholes and telecommunication engineering related problem's function, advanced statistical analysis tools, extensive random number generation techniques, linear and non-linear solvers, implicit intersection and iteration, goal seek, and Monte Carlo simulation tools. It also have many features of Excel such as autofill, automatic input guess, batch process import and export from and to different file format.

Download Gnumeric
Old Versions (List of available Downloads)
Genumeric Tutorials


Statist is a compact, portable program having most of the basic statistical capabilities such as data manipulation (recoding, transforming, selecting), descriptive statistics (including histograms, box plots), correlation and regression analysis, and the common significance tests such as chi-square, t-test, etc. This Statistical software is written in C Language.(It source code is also available for improvement and further update). This software can run on Unix/Linux, Windows, Mac, among others operating systems. Statist is simple to use and can be run in scripts. It also handles Big data sets well on small machines.

To Download this software get register on this site get registered as site user


Tanagra is a free (open-source) statistical software for data-mining for academic and research purposes, supporting the standard "stream diagram" paradigm used by most data-mining systems. This software contains components for Data source (tab-delimited text), Visualization (grid, scatter-plots), Descriptive statistics (cross-tab, ANOVA, correlation), Instance selection (sampling, stratified), Feature selection and construction, Multiple Linear Regression, Factorial analysis (principal components, multiple correspondence), Clustering (kMeans, SOM, LVQ, HAC), Supervised learning (logistic regression, k-NN, multi-layer perceptron, prototype-NN, ID3, discriminant analysis, naive Bayes, radial basis function), Meta-spv learning (instance Spv, arcing, boosting, bagging), Learning assessment (train-test, cross-validation), and Association (Agrawal a-priori).

Download Link Download (XP, Vista, Win 7)
Tutorials Download
Functionalities Tanagra Functionalities


Dap is a statistics and graphics package developed by Susan Bassein for Unix and Linux systems, with necessary and common data management facilities. It helps to conduct Statistical analysis such as univariate statistics, correlations and regression, ANOVA, categorical data analysis,logistic regression, and nonparametric analyses. Dap Provides some of the core functionality of SAS, and is able to read and run many SAS program files (but not all).

Download Dap

AM Statistical Software

AM is a free statistical package for analyzing data from complex samples, especially large-scale assessments, as well as non-assessment survey data. AM has advanced statistical tools, easy drag & drop interface, and integrated help system that explains the statistics as well as how to use the software. It can estimate statistical models via marginal maximum likelihood (MML), which defines a probability distribution over the proficiency scale. It also analyzes "plausible values" used in programs like NAEP. AM automatically provides appropriate standard errors for complex samples via Taylor-series approximation, jackknife & other replication techniques. This software also offering a set of non-MML statistics, including regression, probit, logit, cross-tabs, and other statistics that are useful for survey data in general.

You need to get registered on site to download the AM Statistical software.

Instat Plus

Instat Plus is a statistical computing package from the University of Reading, at statistical service center, in the UK. (do not confuse it with Instat from GraphPad Software.) It is an interactive statistics package for Windows or DOS. This statistical softwares is simple and useful in teaching statistical ideas, and has the power to assist researcher in any discipline that requires the analysis of data. Instat includes many special facilities for the processing of climatic data.

Download Instat Plus


WinIDAMS is a free statistical software from UNESCO and Information processing tools, for numerical information processing and statistical data analysis. WinIDAMS Provides data manipulation and validation facilities for classical and advanced statistical techniques (table building, regression analysis, one-way analysis of variance etc.), including interactive construction of multidimensional tables, graphical exploration of data set such as 3D scattergram spinning, etc., time series analysis, and a large number of multivariate techniques such as discriminant analysis, cluster analysis, principal components factor analysis and analysis of correspondences, partial order scoring, rank ordering of alternatives, segmentation and iterative typology.

Download WinDAMS.


SSP (Smith's Statistical Package) is a simple, user-friendly statistical package available for both Mac and Windows operating systems. SSP software helps for entering, editing,transforming, importing and exporting the data. It can calculate basic summaries, prepare charts, evaluate distribution function probabilities, and can perform simulations. Many inferential statistics test are available such as compare means and proportions test, ANOVA's, Chi Square tests, simple & multiple regressions analysis.

Download SSP Windows Version
Download SSP Mac Version


Dataplot software systems is available for Unix, Linux, PC-DOS and Windows operating system for scientific visualization, statistical analysis, and non-linear modeling. It has extensive mathematical and graphical capabilities. The target Dataplot user is the researcher and analyst engaged in the characterization, modeling, visualization, analysis, monitoring, and optimization of scientific and engineering processes. Closely integrated with the NIST/SEMATECH Engineering Statistics Handbook.

Download Dataplot Windows Version
Download Dataplot Macros
Download Dataplot Random Number Generator


Regress+ is a professional statistical package for performing univariate mathematical modeling (equations and distributions). The most powerful software of its kind available anywhere, with state-of-the-art functionality and user-friendliness. It has 21 built in equation and 59 built in distributions.

Download Regress+
Download Compendium of Common Probability Distributions


SISA is a simple Interactive Statistical Analysis for PC (DOS) i.e for windows operating system from Daan Uitenbroek. There is an excellent collection of individual windows and DOS modules for several statistical calculations, including some analyses not readily available elsewhere.

Download SISA Windows Program

These windows program contain certain procedure that perform specific statistical analysis.
  • lifetables
    It helps to perform Mortality Analysis for Demography and Epidemiology. Lifetables program calculates the life expectancy, including all intermediary statistics, variance an confidence interval for the life expectancy, Potential Gains in Life Expectancy (PGLE), Years of Potential Life Lost (YPLL) and Lifetime Years of Potential Life Lost (LYPLL).
  • Distributions
    SISA-Distributions program allows the user for analysis of discrete single dimension distributions. The program is based on various manipulations of the Poisson, binomial and hypergeometric distribution. Available are the probability of an observed number of cases for certain null hypothesis, the calculation of exact Poisson, binomial or hypergeometric confidence intervals, the exact and approximate size of a population using catch-recatch methodologies, the full analysis of a Poisson distributed rate ratio, Fieller analysis, and two versions of the negative binomial distribution can be used in various ways.
  • Multinomial
    The multinomial program is the exact solution to the Chi-square Goodness of fit test of testing for a difference between an observed and an expected distribution in a one-dimensional array. For two-category array the multinomial test provides a two-sided solution for the Binomial test. The multinomial allows you to work with empty '0' observation cells although you must have an expectation about a cell.
  • Tables
    SISA-Tables is a program for the analysis of tables with up to 2*7 and 3*3 cells. This program (Tables) allows for exact and approximate statistics. Fisher exact, Number Needed to Treat, Proportional Reduction in Error Statistics, Normal Approximations, Four different Chi-squares, Gamma, Odds-ratio, t-tests and Kappa are among the many statistical procedures available in Tables Program.
  • Weighting
    Weighting program by SISA calculates sample weights according to the cell weight procedure. The design factor and the effective sample size for the resulting set of weights is determined. It is possible to specify a value above which extreme weights will be trimmed. The not trimmed weights will be recalculated.
  • Intra Correlation
    The intra correlation program from SISA calculates intra correlations and design effects for clustered samples were the outcome measure is the number of positive responses per cluster. Confidence intervals and other statistics corrected for design effects can be calculated. This program helps to compare two groups of clusters with a t-test procedure.


There are two spreadsheets available, a spreadsheet that does demographic analysis and another spreadsheet for the calculation of intracorrelation coefficients. The spreadsheets are in Microsoft Excel file format; If you have MS Excel installed on computer, your computer will start up Excel and load the spreadsheet into Excel automatically after you double click the procedure name.

  • Lifetable
    This lifetable spreadsheet does a full abridged current life table analysis to obtain the life expectancy of a population. Furthermore, one can calculate Potential Gains in Life Expectancy (PGLE) after removing cause k, considering competing causes of death; the (Premature) Years of Potential Life Lost (YPLL), the Standardized Mortality Ratio (SMR), standardized numbers per 100,000 and the Comparative Mortality Figure (CMF) can also be calculated.
  • Discounted YPLL
    This spreadsheet contains the procedure to discount the YPLL if you only have mortality by age.
  • Intra Correlation
    The spreadsheet performs intra correlation calculations for dichotomous (binary yes/no) type outcome variables according to two different methods proposed for the single cluster one by Fleiss and another one by Bennett et.al. A third spreadsheet concerns a method for two clusters by Donner and Klar.
  • Distributions
    There are 22 spreadsheets which demonstrate various statistical distributions such as Beta, Binomial, Normal, Poisson, Pareto etc.

MS-Dos Programs

The programs below are for use on MSDOS (Dos command Prompt). These DOS procedures (programs) are no longer maintained, except for bug fixing, and generally have limited statistical capabilities. The DOS procedures are very fast as compared with the HTML/Javascript programs on the Website and are also very small in size.

  • Hypergeometric
    This procedure calculates the hypergeometric probability distribution to evaluate hypothesis in relation to sampling without replacing in small populations i.e. (hypergeometric distribution)
  • Binomial
    This procedure calculates probabilities for sampling with replacing in small populations or without replacing in a very large population. It Can be used to approximate the hypergeometric distribution.
  • Poisson
    This procedure calculates probabilities for samples which are very large in an even larger population. it can used to approximate the binomial distribution.
  • Negative Binomial 1
    It is used to study accidents, is a more general case than the Poison, it considers that the probability of getting accidents if accidents clusters differently in subgroups of the population.
  • Negative Binomial 2
    Another version of the negative binomial, this one is used to do the marginal distribution of binomials. Often used to predict the termination of real time events. Such as the probability of terminating listening to a non-answering phone after n-rings.
  • Multinomial
    Same as described above in Windows Programs.
  • Fisher
    Is used to calculate the exact p-value for 2*2 contingency tables. Use the fisher exact instead of the Chi-square when you have a small value in one cell or a very uneven marginal distribution.
  • SPRT
    This Dos procedure is not often used, but it is actually quite good. This procedure is based on the case of phenomena being observed, tested, or data collected, sequentially in time. It is sometimes used in medical trials to monitor the amount of negative side effects and to decide whether the trial should be stopped as the number of side effect is considered high enough.
  • Chi-Square
    This Dos procedure calculates the Chi-square and some other measures for two dimensional tables.
  • Casro
    This Dos Program calculates response rates according to different procedures. The CASRO (Council of American Survey Research Organizations) procedure is the "accepted" procedure for surveys.
Statistical Software by Paul W. Mielke Jr.

Statistical Software by Paul W. Mielke Jr. has a large collection of executable DOS programs and FORTRAN source. It contains Matrix occupancy, exact g-sample empirical coverage test, interactions of exact analyses, spectral decomposition analysis, randomized block (exact mrbp) analyses, exact multi-response permutation procedure, Fisher's Exact for cross-classification and goodness-of-fit test, Fisher's combined p-values i.e. meta analysis, largest part's proportion test, Pearson-Zelterman test, Greenwood-Moran and Kendall-Sherman goodness-of-fit, runs tests, multivariate Hotelling's test, least-absolute-deviation regression analysis, sequential permutation procedures, LAD regression, principal component analysis, matched pair permutation, r by c contingency tables, r-way contingency tables, and Jonkheere-Terpstra.

Download Statistical Software by Paul W. Mielke Jr. (Windows Version)
Download Statistical Software by Paul W. Mielke Jr. (Unix Version)