Fastest JSON reader/writer for C++

http://lloyd.github.com/yajl/

http://www.digip.org/jansson/

Don’t really know how they compare for speed, but the first one looks like the right idea for scaling to really big JSON data, since it parses only a small chunk at a time so they don’t need to hold all the data in memory at once (This can be faster or slower depending on the library/use case)

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