Open Source Java Interpreters

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.

CLIPS is a forward-chaining rule-based programming language written in C that also provides procedural and object-oriented programming facilities.

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.

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

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.

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.

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.

We extend the Eclipse IDE with tools for development in Haskell, a functional programming language, providing support for a wide range of tools (compilers, interpreters, doc tools etc.) in a coherent, convenient and configurable environment.

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.

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

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).

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

JavaFloyd is an authoring tool for interactive fiction in german language.

Lua interpreter for Android written in pure Java.

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.

JoSQL (Java Objects SQL) provides SQL capabilities for querying, ordering and grouping of collections of Java objects (POJOs). It allows a SQL statement to be applied to the collection of objects and the matching set returned, ordered and grouped.

Joost is a Java implementation of the Streaming Transformation for XML (STX) language (see http://stx.sourceforge.net/)

Jasmin is an interpreter for the x86 assembly language with a full-featured development environment aimed for educational purposes.

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.

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.

Abstrasy is a programming language inspired by LISP and SCHEME. It is easy to learn and offers a revised syntax for application requirements and improve its readability. It is implemented as a script interpreter (programmed in Java based).

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.

Lsl Plus is an edit/compile/test environment for the Linden Scripting Language (LSL), implemented as an Eclipse plug-in.

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.

FramerD is a distributed semi-structured object database originally developed at MIT. It provides an internationalized Scheme-based scripting language, built-in text analysis tools, and special support for web scripting.