Lua CJSON provides fast JSON parsing and encoding support for Lua.  It
has been tested under Linux, FreeBSD, OSX, Solaris and Windows.

Features:

- Fast, standards compliant encoding/parsing routines.
- Full support for JSON with UTF-8, including decoding surrogate pairs.
- Optional run-time support for common exceptions to the JSON specification
  (NaN, Infinity,..).
- No external dependencies.

WWW: http://www.kyne.com.au/~mark/software/lua-cjson.php