Kevin Murphy's list of Bayesian network software:Most up-to-date list available.
AgenaRisk: Bayesian network, simulation and risk analysis software. Supports exact and approximate inference in hybrid and dynamic networks for decision support, diagnosis, statistical learning and prediction applications.
BayesBuilder: A tool for constructing and testing Bayesian networks.
BayesiaLab: Bayesian network laboratory producing a broad set of tools for structure learning, analysis, adaptive questionnaires, and dynamic Bayesian networks
Bayesian Belief and Decision Networks Applet: CISpace tools for learning about belief networks: a set of Java applets and example networks.
Bayesian Knowledge Discoverer: Able to learn Bayesian Belief Networks from (possibly incomplete) databases. Algorithm based on the Bound and Collapse estimation method.
Bayesian Network Toolbox (BNT): Kevin Murphy's MATLAB toolbox - supports dynamic BNs, decision networks, many exact and approximate inference algorithms, parameter estimation, and structure learning
Bayesian Network tools in Java (BNJ): Open-source suite of software tools for research and development using graphical models of probability, published by Kansas State University Laboratory for Knowledge Discovery in Databases (KDD)
Bayesline: Very generic and free (LGPL) Belief Network Framework in C++ - supports a broad range of knowledge and dependency types for network variables and clusters of variables
Belief Net Power Constructor: System based on Jie Cheng's three-phase belief network construction algorithm. Includes a wizard-like user interface and a belief network construction engine.
BNet Desktop Software and Developer Toolkits: BNet.Builder is a belief network software application. BNet.EngineKit provides an embeddable engine.
BUGS - Bayesian inference Using Gibbs Sampling: Bayesian analysis of complex statistical models using Markov chain Monte Carlo (MCMC) methods.
Charles River Analytics, Inc.: BNetâ„¢.Builder is a desktop application for rapidly creating Belief Networks, entering information, and getting results. BNet.EngineKit is a developer toolkit for researchers and engineers to use to embed belief networks in software applications.
CleverSet, Inc.: Develops and exploits proprietary Relational Bayesian Modeling (RBM) technology and applications that provide real-time, actionable results from large amounts of dynamic, multi-faceted, ambiguous information.
CoCo: Model selection on graphical models (including belief networks).
Complex Systems Computation Group (CoSCo): BAYDA software implements Bayesian predictive discriminant analysis, where the aim is to build a model for predicting the value of one discrete (class, group, category) variable using other variables.
DEAL: Open source package for the technical computing language R, developed by Aalborg University and Novo Nordisk A/S - analysis and structure learning of Bayesian networks with discrete and/or continuous variables
DecsionQ Bayesian Predictive Analysis Software: A data mining software company that has a fully automated data modeling and predictive analytics package.
Ergo: A Bayesian network editor and solver. [Windows/Macintosh]
Genie/Smile: GeNIe is a development environment for building graphical decision-theoretic models running under Windows operating systems. SMILE is its portable inference engine, consisting of a library of C++ classes, currently compiled for Windows, Solaris and Linux.
HUGIN EXPERT - Hugin: Developers of the Hugin tool
Inquiring Knowledge Networks On the Web (IKNOW): IKNOW, an interdisciplinary project from the University of Illinois at Urbana-Champaign, helps enhance individuals' ability to access and visualize an organization's knowledge and social capital
Intel's Open Source Networks Library: PNL is a full function, free, open source, graphical models library released under a BSD style license.
JavaBayes: Bayesian networks in Java.
Knowledge Industries, Inc.: Builds and licenses diagnostic software based upon Bayesian Belief Networks for medical, industrial and management applications. Software includes editors/compilers, test/review tools and inference engines embeddable in stand-alone and web-based applications.
Lumina Decision Systems: Makers of Analytica, visual software tool for creating, analyzing, and communicating quantitative business models.
Microsoft Belief Network Tools: Free Windows software for creation, assessment and evaluation of belief networks.
MIM: Windows program for graphical modelling.
Norsys Software Corp.: Netica is a complete program for working with belief networks and influence diagrams. Feature compiles belief (Bayesian) networks into a junction tree of cliques for fast probabilistic reasoning.
Pronel: Data mining tool for extracting Bayesian networks from data.
Pulcinella: Tool for propagating uncertainty through local computations based on the general framework of valuation systems proposed by Shenoy and Shafer.
RISO: Robert Dodier's open source package for distributed, heterogeneous belief networks in Java - allows different conditional distributions
SamIam: Sensitivity Analysis, Modeling, Inference and More: SamIam is a comprehensive tool for modeling and reasoning with Bayesian networks, developed in Java by the Automated Reasoning Group of Professor Adnan Darwiche at UCLA.
WebWEavr-III: WEBWEAVR-III is a Java application that supports the construction of Bayesian networks, inference in standard and dynamic Bayesian networks and decomposable Markov networks, construction and verification of multiply-sectioned Bayesian networks (MSBNs), inference in multi-agent MSBNs, and learning decomposable Markov networks.
XBAIES: Rob Cowell's windows-based system for bayesian network inference and learning.
XML Belief Network File Format: Proposed XML standard for describing Bayesian belief networks.