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31. Jackson Datatype: Guava1,293 usages

com.fasterxml.jackson.datatype » jackson-datatype-guavaApache

Add-on datatype-support module for Jackson (https://github.com/FasterXML/jackson) that handles Guava (https://github.com/google/guava) types (currently mostly just collection ones)
Last Release on Oct 31, 2025

Relocated → tools.jackson.datatype » jackson-datatype-guava

32. Ktor Serialization Kotlinx JSON1,272 usages

io.ktor » ktor-serialization-kotlinx-json-jvmApache

Ktor is a framework for quickly creating web applications in Kotlin with minimal effort.
Last Release on Nov 5, 2025

33. JSR 374 (JSON Processing) Default Provider1,264 usages

org.glassfish » javax.jsonCDDLGPL

Default provider for JSR 374:Java API for Processing JSON
Last Release on Nov 7, 2018

Relocated → org.glassfish » jakarta.json

34. Jackson Dataformat: CBOR1,184 usages

com.fasterxml.jackson.dataformat » jackson-dataformat-cborApache

Support for reading and writing Concise Binary Object Representation ([CBOR](https://www.rfc-editor.org/info/rfc7049) encoded data using Jackson abstractions (streaming API, data binding, tree model)
Last Release on Oct 31, 2025

Relocated → tools.jackson.dataformat » jackson-dataformat-cbor

35. Java JWT1,162 usages

com.auth0 » java-jwtMIT

Java client library for the Auth0 platform
Last Release on Jan 29, 2025

36. Kotlinx Serialization JSON1,155 usages

org.jetbrains.kotlinx » kotlinx-serialization-json-jsApache

Kotlin multiplatform serialization runtime library
Last Release on Jun 27, 2025

37. Jettison1,153 usages

org.codehaus.jettison » jettisonApache

A StAX implementation for JSON.
Last Release on Mar 14, 2023

38. Jackson Module Scala1,136 usages

com.fasterxml.jackson.module » jackson-module-scalaApache

Core Jackson module for Scala
Last Release on Oct 31, 2025

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

39. JJWT :: Legacy Transitive Dependency Jar1,083 usages

io.jsonwebtoken » jjwtApache

Legacy dependency. Please update your dependencies as documented here: https://github.com/jwtk/jjwt#installation
Last Release on Aug 20, 2025

Relocated → io.jsonwebtoken » jjwt-api

40. Serde JSON1,082 usages

aws.smithy.kotlin » serde-json-jvmApache

JSON serialization and deserialization for Smithy services generated by smithy-kotlin
Last Release on Nov 10, 2025