I'm not aware of anything that meets both of these requirements. If you just wanted Javascript, Clojurescript is definitely worth a look, but the readability o

I'm not aware of anything that meets both of these requirements. If you just wanted Javascript, Clojurescript is definitely worth a look, but the readability of generated code is debatable (especially since you're strongly encouraged to use Google Closure compiler, at least for production builds). One thing that's worth a look in terms of being relatively lightweight and scoring well on output readability is https://fennel-lang.org https://fennel-lang.org. That's targeting Lua, but it does seem like a good pointer to how something like what you're asking for could exist, given some work.