As far as I know, there are three JSON Parsers for Objective-C, JSON Framework, YAJL, and Touch JSON. Then, These three would have their own characteristics. For example: YAJL can be used as a SAX style parser. JSON Framework has relatively long history and is widely used. Touch JSON parses NSData instead of NSString. In addition, as far as I tested, the result of performance comparison is as foll
![Comparison of JSON Parser for Objective-C (JSON Framework, YAJL, TouchJSON, etc)](https://cdn-ak-scissors.b.st-hatena.com/image/square/98d6f053a97a87156775f60757c60865d0f2c47d/height=288;version=1;width=512/https%3A%2F%2Fcdn.sstatic.net%2FSites%2Fstackoverflow%2FImg%2Fapple-touch-icon%402.png%3Fv%3D73d79a89bded)