Browse free open source Java Interpreters and projects below. Use the toggles on the left to filter open source Java Interpreters by OS, license, language, programming language, and project status.
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A native Windows port of the GNU Compiler Collection (GCC)
MinGW: A native Windows port of the GNU Compiler Collection (GCC), with freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All of MinGW's software will execute on the 64bit Windows platforms.
The Saxon XSLT and XQuery processor, developed by Saxonica
The home page for the Saxon XSLT 3.0, XQuery 3.1, and XPath 3.1 processor has moved to http://www.saxonica.com/. Information on this site is no longer kept up to date.
Sourceforge was the home for open-source versions of the Saxon XSLT 3.0, XQuery 3.1, and XPath 3.1, processor from 1999 until 2022. From version 12.0 in January 2023, you need to visit the Saxonica site at http://www.saxonica.com/ for the latest information and releases.
eXist-db is a feature rich Open Source native XML database
eXist-db is a native XML database featuring efficient, index-based XQuery processing, extensions for keyword search, XUpdate support, XSLT support, XForms support, REST and tight integration with existing XML development tools. Moved to Github - https://www.github.com/exist-db/exist
JamVM is a new Java Virtual Machine conforming to the JVM
specification edition 2 (blue book). It is extremely small - stripped
on PowerPC ~110K, Intel 80K. However, unlike other small VMs it
supports the full spec, inc. object finalisation and JNI.
Jython is a Java implementation of the Python language. It allows users to compile Python source code to Java byte codes, and run the resulting bytecodes on any Java Virtual Machine. It is the successor to JPython.
Tcl/Java consists of two pieces of software. Jacl is an
implementation of a Tcl interpreter written entirely in
Java. Tcl Blend is a Tcl extension that provides access
to Java from inside Tcl. One can prototype Java code
using Tcl, and much more.
Jason is a fully-fledged interpreter for an extended version of AgentSpeak, a BDI agent-oriented logic programming language, and is implemented in Java. Using JADE a multi-agent system can be distributed over a network effortlessly.
This project was moved to https://jason-lang.github.io
Community Z Tools Project (CZT):
Tools for editing, typechecking and animating Z
specifications and related notations.
Includes a Java framework for building formal methods tools.
NOTE: development of CZT has now moved to GitHub:
https://github.com/community-z-users/czt
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CookXml is a powerful dynamic XML data binding tool for Java. It is designed to be easily extensible and yet simple to use, with advanced exception handling. CookSwing and CookSwt are tag libraries for CookXml to do XML->GUI (XUL) for Swing and SWT.
JPype is an effort to allow python programs full access to java class libraries. This is achieved not through re-implementing Python, as Jython/JPython has done, but rather through interfacing at the native level in both Virtual Machines.
Maintenance and evolution of the project has moved! please see http://www.jpype.org for the latest version
The PHP script engine for Java. --- Run PHP applications within any J2EE server or servlet engine and/or connect script engines like PHP with Java or .NET back ends efficiently.
Lightweight, fast, Java-centric Lua interpreter written for JME and JSE, with string, table, package, math, io, os, debug, coroutine & luajava libraries, JSR-223 bindings, all metatags, weak tables and unique direct lua-to-java-bytecode compiling.
SableCC is a parser generator which generates object-oriented frameworks for building compilers, interpreters and other text parsers. SableCC keeps a clean separation between machine and user code which leads to a shorter development cycle.
JBasic is a traditional BASIC language intepreter written in Java for command line or embedded use. It supports conventional original DOS and MSBASIC syntax, plus some modern extensions for supporting threads, JDBC, etc. JBasic can be run directly from a shell.
NOTE: Yacas and yagy development has moved to github. The new repositories are located at https://github.com/grzegorzmazur/yacas and https://github.com/grzegorzmazur/yagy . The mailing list has been moved over to https://groups.google.com/forum/#!forum/yacas . The downloads section at sourceforge will be kept up to date for the foreseable future.
Yacas is an easy to use, general purpose computer algebra system. It uses its own programming language designed for symbolic as well as arbitrary-precision numerical computations. The system comes with a library of scripts and extensive documentation.
Yagy (http://sourceforge.net/p/yagy) provides full yacas experience wrapped in a simple and intuitive graphical interface.
Un sistema de programación abierto, modular y flexible para fomentar las siguientes disciplinas: 1) programar para una interfaz, no para una implementación (GOF); 2) diseño por contrato; y 3) desarrollo dirigido por pruebas.
SISC is an extensible Java based interpreter of the algorithmic language Scheme. SISC uses modern interpretation techniques, and handily outperforms all existing Java interpreters (often by more than an order of magnitude).
Suneido is an integrated application platform for developing and deploying desktop applications that includes an object-oriented language, client-server relational database, and application framework and components.
UJAC is a collection of Java components that may be useful for your project. It provides a powerful expression interpreter, a iText based document processing engine that generates PDF documents based on XML templates, a charting library and much more.
Tool to parse the command line and configuration files.
Powerful command line and configuration file parsing for C++, Python, Ruby and Java (others to come). This tool provides many features, such as separate treatment for options, variables, and flags, unrecognized object detection, prefixes and much more.
JEPLite is a light-weighted (re)implementation of the Java Expression Parser (jep.sourceforge.net). The intention is to strip some of its not-so-often-used features, and thus speeding the rest. Includes expression optimizer.
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