Clément Pit--Claudel <cpitcla@mit.edu> writes:
>>> Would there be strong objections to supporting a C JSON library in
>>> addition to the current ELisp implementation?  This was suggested
>>> at one point in
>>> https://lists.gnu.org/archive/html/bug-gnu-emacs/2015-03/msg00770.html
>>> .  It would be similar in spirit to supporting libxml-parse-region
>>> along xml-parse-region, and it could provide nice speed boosts to
>>> json-heavy ELisp programs.
>>
>> Since we have modules now, something that wasn't available back
>> then, you could roll your own library, right?
>
> That's right! I forgot about these. Let me try :)

Here's one: https://github.com/syohex/emacs-parson