JSON Libraries
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Fastjson is a JSON processor (JSON parser + JSON generator) written in Java
Last Release on Sep 3, 2026

Add-on module for Jackson (https://github.com/FasterXML/jackson) to support JDK 8 data types.
Last Release on Sep 23, 2026
Ktor is a framework for quickly creating web applications in Kotlin with minimal effort.
Last Release on Sep 17, 2026
A library to query and verify JSON
Last Release on Feb 22, 2026
Add-on module for Jackson (https://github.com/FasterXML/jackson/) to support Kotlin language, specifically introspection of method/constructor parameter names, without having to add explicit property name annotation.
Last Release on Sep 23, 2026

Jersey JSON Jackson (2.x) entity providers support module.
Last Release on Jun 12, 2026
Core classes for Circe, a JSON library for Scala developed with a focus on performance.
Last Release on Jun 25, 2026
Circe Parser is a wrapper around the Jawn JSON parser (in the JVM) and for the built-in JSON.parse (in JavaScript).
Last Release on Jun 25, 2026
Add-on module for Jackson (https://github.com/FasterXML/jackson) to support introspection of method/constructor parameter names, without having to add explicit property name annotation.
Last Release on Sep 23, 2026
Groovy: A powerful multi-faceted language for the JVM
Last Release on Sep 23, 2026