Open Source C Business Software

GnuWin provides Win32-versions of GNU tools, or tools with a similar open source licence. The ports are native ports, relying only on libraries provided with any modern 32-bits MS-Windows operating system, such as 2000 / XP / Vista / 7

A famous scientific plotting package, features include 2D and 3D plotting, a huge number of output formats, interactive input or script-driven options, and a large set of scripted examples.

FreeImage is a library project for developers who would like to support popular graphics image formats (PNG, JPEG, TIFF, BMP and others). Some highlights are: extremely simple in use, not limited to the local PC (unique FreeImageIO) and Plugin driven!

The SourceForge OpenRasMol project is an adjunct to the RasMol and OpenrasMol project at http://rasmol.org. It is hoped that the SourceForge OpenRasMol project will provide a convenient focal point for active collaborative contributions.

vDos is specific to run serious (mainly text mode) DOS applications in Windows 32 or 64-bit, Windows 7 or later. You need at least already use such a DOS application to appreciate vDos. If you don’t, want to play with DOS (or its games): vDos isn’t meant for you! Recent versions (latest 2026.05.01) and the vDos forum are now hosted at: https://www.vdos.info

OpenL2TP is an L2TP client/server written specifically for Linux. It has been designed for use as an enterprise L2TP VPN server or for use in commercial, Linux-based, embedded networking products.

EN : Visualization of non-convex polyhedra and pattern generating for paper building. FR : Visualisation de polyèdres non-convexes et génération de patrons pour une construction papier.

This gateway allows to control MT4 metatrader terminal by an external program using Fix protocol. In particular it allows to read quotes from charts and to execute trading orders. Market and limit orders are supported.

mathSuite is a very powerful Mathematical Suite which deals principally with complex algebric and geometric operations. It is powered by the fabulous ExprEval C Parser. The main purpose of this project is fast math-oriented algorithm virtualization, with an optimized direct text interface. Also it gives you a very powerful and fast Calculus Environment which let you handle easily interchangeable variable lists, matrices, LOGS and Settings Layouts with optimized Items Lists Managing Engine. You'll also be able to execute your own scriptfiles with a basic math-oriented beta script language. Some feature regarding Matrices and Linear Algebra Operations are LU-Factorization, SVD Decomposition, Rank Calculator, Ill Condition Checking and more... There are also a very powerful Linear System Solver and Basic PRELoaded Functions Integrator Engine.

The Embedded Systems 3D Game Software Development Kit, short ES 3D Game SDK, is an Open Source 3D Game Engine / SDK for embedded devices based upon OpenGL ES.

Ultrascale Visualization Climate Data Analysis Tools (UV-CDAT), is a powerful and complete front-end to a rich set of visual-data exploration and analysis capabilities well suited for climate-data analysis problems.

The Revolution-FX project goal is to provide the best platform for developing applications for the CASIO fx-9860G graphing calculator. Revolution-FX components include addheader, code editor, a hardware library, and works with the GNU toolchain.

Avenzoar is a one-year exploration of renal cell carcinoma morphology and its related single nucleotide polymorphisms (SNPa) as a method of automating diagnosis of cancer by using a computer-aided decision tree controlled by analytical statistics.

BP-Sim allows users to perform an extensive range of tests across the chain of payment services and thus identify potential causes of failures before launching payment systems into production. BP-Sim consists of following modules: BP-Source, BP-Host, BP-HSM and BP-SeeEMV. BP-Source and BP-Host are payment transaction simulators supporting formats as: APACS30, AS2805, many ISO8583 dialects, IFSF, SPDH, TCMP. Together with industry-standard cryptography, multi-platform support, configurable transaction load up to 2000 TPS. BP-Sim HSM module provides an adequate TCP/IP simulation of the Thales Hardware Security Mod. BP-SeeEMV simulates the steps involved in an EMV transaction that take place in the EMV terminal and the Issuer Server (when conducted online). Module can process a transaction one step at a time in step-by-step mode or to certain break-point.

Digital Psionics develops a variety of scientific and entertainment software.

Geodes is a mac application designed to do geometry and math like you can do in front of a sheet of paper. It both includes simple figures drawing (lines, circles) and high level analytic geometry.

A screensaver that displays electric grid frequency variations, and various analysis results in real time.

The LA/OpenBP billing platform provides high performance/volume, industry independent billing functionality. It is designed for easy integration into complex environments such as those found in the telecommunication, utility and finance industries.

LibG100 is a common library to use all capacity of the Casio Afx2/Graph100 Calculator

Null Groupware is a self-hosting web based groupware system written in c. It's portable, modular, and has a complete api for third party developers' extensions. Features include event scheduling, call tracking, contact management, web-based email, a w

Opentick is a financial market data service which provides a suite of API's for connecting market data to custom software applications.

A powerful interpreted language with simple compiler for Windows 7 to create apps for graphics, image acquisition, processing and advanced analysis. Includes 800+ commands, help, simple development studio, plug-in API and Debugger window.

This project aims to create a Python SQLite based data offline/online analytics program targetted mainly on web analytics. The main development would involve a complete python powered (C/C++ intermediate wrappers if required) sqlite analysis engine.

A service-oriented, single-source, Java integration server with virtual Service Stores(TM) that expose services via web services, HTTP and more. Service Flows provide process automation. Mainframe, database, email, web, soap & ftp adapters are included.

Scripting Tcl interface to Qt multiplatform library