JS-Forth : Forth Interpreter in JavaScript

Run the Forth Interpreter
jsforth wiki page
jsforth quick reference
words implementation status report

Depending on the browser you use, you will experience the one or another
quirk in the terminal emulation. These web browsers are reported to run JS-Forth
(in order of terminal emulation usability):
Firefox, Mozilla, Netscape, Epiphany, Galeon : good
Opera,Safari,Konqueror : fair
Internet Explorer: poor
Input key handling is broken for Konqueror 3.3.1, possibly before. Konqueror 3.3.2
cursor positioning is not good, similar to Opera. Backspace doesn't work with
Internet Explorer, try ctrl-q instead. Error handling and key? are broken with Internet Explorer,

Best viewed with resolutions and font sizes which allow placement of the two input/output areas next to each other. Try reducing the font size if one is below the other (Firefox: ctrl-minus)