Jawn download | SourceForge.net

The term "jawn" comes from the Philadelphia area. It conveys about as much information as "thing" does. I chose the name because I had moved to Montreal so I remembered Philly fondly. Also, there isn't a better way to describe objects encoded in JSON than "things". Finally, we get a catchy slogan. Jawn was designed to parse JSON into an AST as quickly as possible. Currently, Jawn is competitive with the fastest Java JSON libraries (GSON and Jackson) and in the author's benchmarks, it often wins. It seems to be faster than any other Scala parser that exists (as of July 2014).

Features

Jawn" is designed to parse JSON into an AST (Abstract Syntax Tree) as quickly as possible
Jawn is competitive with some of the fastest Java JSON libraries (GSON and Jackson), often outperforming them. It is claimed to be faster than any other Scala parser as of July 2014
awn supports various versions of Scala (2.12, 2.13, and 3) on the JVM and Scala.js
It's also compatible with Scala Native for Scala 2.12 and 2.13
Jawn's parser is both fast and featureful, allowing you to parse JSON and get an AST of type J when you have a Facade[J] defined
Support for External ASTs