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41.Gson On Fire!857 usages

io.gsonfire » gson-fire Apache

A java library that adds some very useful features to Gson, like Date serializing to unix timestamp or RFC3339, method (getter) serialization, pre and post processors and many more. Check out the documentation to learn how to use it!
Last Release on Nov 6, 2023

42.Jsoniter Scala Core198 usages

com.github.plokhotnyuk.jsoniter-scala » jsoniter-scala-core MIT

jsoniter-scala-core
Last Release on Sep 20, 2026

43.Apache Groovy809 usages

org.codehaus.groovy » groovy-json Apache

Groovy: A powerful, dynamic language for the JVM
Last Release on May 27, 2025

Relocated → org.apache.groovy » groovy-json

44.Ktor Client JSON189 usages

io.ktor » ktor-client-json-jvm Apache

Ktor is a framework for quickly creating web applications in Kotlin with minimal effort.
Last Release on Sep 17, 2026

45.Johnzon :: Core180 usages

org.apache.johnzon » johnzon-core Apache

Johnzon :: Core
Last Release on Aug 11, 2026

46.Jackson Module JsonSchema459 usages

com.fasterxml.jackson.module » jackson-module-jsonSchema Apache

Add-on module for Jackson (http://jackson.codehaus.org) to support JSON Schema (http://tools.ietf.org/html/draft-zyp-json-schema-03) version 3 generation.
Last Release on Aug 17, 2026

Relocated → tools.jackson.module » jackson-module-jsonSchema

47.JSON Path125 usages

io.rest-assured » json-path Apache

JSON Path
Last Release on Jul 10, 2026

48.Java JSON Schema Generator191 usages

com.github.victools » jsonschema-generator Apache

Java JSON Schema Generator – creating a JSON Schema (Draft 6, Draft 7 or Draft 2019-09) from your Java classes
Last Release on Feb 10, 2026

49.Everit JSON Schema140 usages

com.github.erosb » everit-json-schema Apache

Implementation of the JSON Schema Core Draft v4 specification built with the org.json API
Last Release on May 15, 2025

50.Json4s Jackson638 usages

org.json4s » json4s-jackson Apache

json4s-jackson
Last Release on Dec 3, 2023