Phype is a Javascript-based virtual machine that will allow you to run PHP code directly in your browser with <script>-tags.
Alef++
Its author claims that “Alef++ is a new programming language like Perl and Lisp syntax, with a many changing in classical languages designs”. It is proposed as a dynamic language is based in Java Virual Machine and designed to OO-Style programmers. It is claimed to have a new design for flow controls, an easy manipulaction for arrays and hashs, many styles for subroutines, a crazy syntax and to be designed just for fun.
wForth: A JavaScript Forth Interpreter
wForth is a JavaScript based Forth interpreter. It supports new Forth word creation, standard math operators on integer types only, parameter stack manipulation, infinite loops, do loops, pass data to and from the parameter stack to the return stack, conditionals (if. then.else). as another example, wForth can interact with others aspects of the browser or to hook into Ajax calls to interact with servers.
munci
From munci’s homepage: Munci (pronounced “Monkey”) is an interactive macro-interpreted-compiling language inspired by Forth. As in Forth, functions written in Monkey can examine source code. Unlike Forth, Munci uses a generalized version of the Java tokenizer for input, so Munci programs can easily parse Java-esque code.
OHL
OHL is a Java extension that adds sub-type switching to Java as in
switch (figure) { case instanceof Circle { return "Radius: " + figure.getRadius(); } case instanceof Square { return "Side length: " + figure.getSideLen(); } }
xUmlCompiler
The xUmlCompiler is an executable UML environment which turns data models specified with UML into executable classes.
Lily: Visual programming on JavaScript
Lily is a browser-based, visual programming environment that lets people create programs graphically, without writing code, by drawing connections between data, images, sounds, text and graphics. Lily’s cross-platform, free, open source and is written in JavaScript.
minilax-to-jasmin
minilax-to-jasmin is a Minilax to Jasmin Java Assembler compile. Minilax looks like a Basic dialect.
ipplesoftbasic BASIC interpreter in JavaScript
ippleSoft BASIC is a free BASIC interpreter written entirely in JavaScript. The dialect supported is (a large subset of) AppleSoft BASIC.
javachatty
javachatty is a Smalltalk dialect with complete Java integration.