Statistics

Stats
  CRAN: See Also R (Linux, Mac, Win)
  Draco: Statistics Package (Linux, Mac, Win)
  EasyDIAG: Interrater Agreement (MatLab)
  ELKI: Data mining (Linux, Mac, Win)
  ESCI: Confidence Intervals (Excel)
  ESS: Emacs Speaks Stats (Linux, Mac, Win)
  ExGutils: Ex-Gaussian (Linux, Mac, Win)
  GlabStat: Web Stats App
  GLSD: Comparisons (Linux, Mac, Win)
  Gnumeric Spreadsheet (Linux, Win)
  Gretl: Econometrics (Linux, Mac, Win)
  |STAT Statistical Data Analyusis (Unix, DOS)
  jamovi: Stats (Linux, Mac, Win)
  JASP-Stats (Linux, Mac, Win)
  jHepWork: Data-Analysis (Linux, Mac, Win)
  Knime: Data Integration (Linux, Mac, Win)
  Mac Stats (Mac)
  MicrOsiris: Data Management (Win)
  MixWILD: Mixed Models (Mac, Win)
  MorePower60 ANOVA (Win)
  OpenModeller: Modelling (Linux, Win)
  Orange: Machine Learning Mining (Linux, Mac, Win)
  PSPP  Stats (Linux, Mac, Win)
R Project
    R: see CRAN (Linux, Mac, Win)
    BlueSky Stats (Win)
    Deducer: Intuitive Stats (Linux, Mac, Win)
    JGR: Java GUI (Linux, Mac, Win)
    Rattle: Data Mining (Linux, Mac, Win)
    RCommander: Easy R (Linux, Mac, Win)
    RKward:Stats (Linux, Mac, Win) 
    RStudio: IDE for R (Linux, Mac, Win)
  RapidMiner: Machine Learning (Linux, Mac, Win)
  Root: Object-Oriented Data Analysis (Linux)
  ShinnyApps: P-value Analyzer
  SISA: Internet Stats
  Statist (Linux, DOS)
  Statistics Open For All: SOFA (Linux, Mac, Win)
  Stats Mapping fMRI, EEG (Linux, Mac, Win)
  Tetrad Causal Models (Linux, Mac, Win)
  Weka: Data Mining (Linux, Mac, Win)

Power
  G*Power & Tutorial (Mac, Win)
  PowerUpR Power Analysis
  Power Page  (Linux, Mac, Win)
DataBases
  Apache Derby: Database (Linux, Win)
  Drizzle: Database for Cloud & Web (Linux, Win)
  Firebird, (Linux, Mac, Win)   
  Gnome-db (Linux)
  HSQLDB: Java Database (Linux, Mac, Win)
  Kexi: DataBase (Linux, Win)
  MariaDB (Linux, Mac, Win)
  MySQL (Linux, Mac, Win)
  NoSQL: Non-SQL RDBMS Database (Linux, Win)
  Oracle database (Linux, Win)
  PostGresql (Linux, Win)
  PhpMyadmin Project (Linux, Win)
  Redis: Key-Value Database (Linux)
  SQLite: A Tiny Database (Linux)
  Virtuoso: Openlink Database (Linux)
  WikindX: References Database (Linux, Mac, Win)
Spreadsheets
  Gnumeric (Linux, Mac, Win)
  Kexi (Linux, Mac, Win)
  LibreOffice (Linux, Mac, Win)
  Oleo: Spreadsheet (Linux)
  OpenOffice (Linux, Mac, Win)

 

Graphics
  Dstat: Stats Tool (Linux)
  Gnuplot: Plot, Chart (Linux, Mac, Win)
  Gplot (Linux, Mac, Win)
  Graphviz: Graphs  (Linux, Mac)
  LabPlot: Analysis & Visualisation (Linux, Mac)
  ImLib3D: 3D Image Processing (Linux)
  MayaVi: Data Visualizer (Linux, Win)
  Maxima: A computer Algebra System (Linux, Win)
  Octave Cf. Matlab (Linux, Mac, Win)
  Open Dynamics Engine: Simulating Dynamics (Win)
  PLplot: PLotting Software (Linux, Mac, Win)
  RLplot  Graph Generator (Linux, Win)
  Scilab: Computation & Graphics (Linux)
  Supression: Collinearity Effect