ISLisp in JS/Go: Standards-compliant Lisp smaller than Common-Lisp.
Note that the on-line JavaScript version does not handle #x prefixes correctly.
Integers are also limited to 31 bit:
(expt 2 31) => -2147483648
in contradiction to https://islisp-dev.github.io/ISLispHyperDraft/islisp-v23.html#integer_class
A full and efficient ISO/IEC 13816:2007(E) ISLISP Implementation.
Commercial software, can be used for free for non-commercial use.
An emacs-like editor for DOS and Windows by the same author can be found on http://christian.jullien.free.fr/emacs/