See also LispyScript (http://lispyscript.com/), “a JavaScript with Lispy syntax and macros”.

Like Ki, it requires inclusion of a standard library. Unlike Ki, it does not provide alternative data structures in addition to native JS values; it only uses native JS values. LispyScript also does not support embedded JavaScript or being embedded within JavaScript. But LispyScript currently has better docs, including a page to try it in the browser (http://lispyscript.com/tryit/).