If performance matters, on the Java platform there is nothing close to Jackson regarding performance (see this , this, or this as data source points). Some newer libraries (for example, "json-smart") claim to be lightweight, fast (er), but have no external validation; more often than not, as their own results do not follow best practices for measuring performance . Therefore, to find out the performance characteristics for your specific use case, test them with your own data and see how things are, besides what you do googling bit.
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