JMAT : Java MATrix tools package.
Provides an easy-to-use class of matrix with MATLAB-like functions and syntax. JMAT also includes plots and histograms in 2D or 3D, an expression parser, and some statistic simulation tools.
JRVFSim (Jarvis) is a simulator of a fluid dynamics phenomenon known as radial viscous fingering. Its main feature consists of taking jordan curves and simulating their evolution subject to various parameters. Includes a partial API for numerical methods
Convey is a real-time, online, multi-user collaboration tool which augments text, graphics, and symbols. Examples of graphics include shapes, mathematical expressions, diagrams, flow charts, and pictures.
Billd is a complete open source billing system for ICRadius written in C.
Includes billing daemon with support for variuos billing methods, support for pre-paid cards and administration tools
for users management.
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Built on open standards like Prometheus and OpenTelemetry, Grafana Cloud includes Kubernetes Monitoring, Application Observability, Incident Response, plus the AI-powered Grafana Assistant. Get started with our generous free tier today.
Story server is an easy to use and attractive system for tracking
stories/use cases during iterative development. It is implemented as
a web application and requires postgresql, a servlet engine, and a
webserver.
Worth is a personal finance manager to manage bank accounts, credit cards, investments and other credit or debit accounts that comprise the individual's net worth. Worth runs as a Web application under an application server such as Jetty or Tomcat.
Java Calculator Suite (jcs) is a collection of Java classes related to expression calculators written in Java. Suports booleans, large numbers, machine numbers, most operators and about 25 different functions.
Flow4J is a java framework, that enables the user to model process flow with a gui interface. The flow may include tasks, decisions or calls to other process flows. The saved flow is in a jar file together with its bytecode.
ForeSite is a project management tool for online collaboration.
Built as a class project, ForeSite provided a basic project management framework accessible from any standards compliant browser. Tasks, Users, Assignments, Due dates, relationships...all the elements expected in a complete management tool.
Libellus is a pocket agenda or PIM. It allows one to schedule events, hold a contact list, view a calendar and perform a few other odds and ends tasks.
Business J is a collection of software providing essential business tools. It includes contact (ContactJ), project (ProjectJ), sales (SalesJ), and financial (AccountJ) management tools written in 100% pure java with full user documentation.
This small script currently runs a simple desktop Calculator application. It currently supports the four operations. Simple to run and light on resources.
MathGenius is a graphical tool intended to simplify your work in mathematics. By now it includes a graphical function plotter, a mechanism (still in development) to derive functions, and an equation solver. An extension mechanism will be developed.
Linux-Kontor is a free ERP (enterprise resource planning) software suite.
Its core components are customer, order, invoice and stock management. It's written completely in Java and has a three-tier architecture.
Eurobduget, Small Office Software written in Java, is one of the first free personnal accounting tool. Webstart Enabled.
Could be seen as a small free Microsoft Money or Quicken.