Repositories list

• jackson-dataformat-xml

  Public

  FasterXML/jackson-dataformat-xml’s past year of commit activity
  Extension for Jackson JSON processor that adds support for serializing POJOs as XML (and deserializing from XML) as an alternative to JSON

  Java

  •

  Apache License 2.0

  •241241 forks•623623 stars•4343 issues•88 pull requests•Updated Apr 24, 2026Apr 24, 2026

• jackson-core

  Public

  FasterXML/jackson-core’s past year of commit activity
  Core part of Jackson that defines Streaming API as well as basic shared abstractions

  jsonjacksonhacktoberfest

  jsonjacksonhacktoberfest

  Java

  •

  Apache License 2.0

  •881881 forks•2.4k2.4k stars•1717 issues•11 pull request•Updated Apr 24, 2026Apr 24, 2026

• jackson-databind

  Public

  FasterXML/jackson-databind’s past year of commit activity
  General data-binding package for Jackson: works on streaming API (core) implementation(s)

  jsonjacksonhacktoberfest+ 1

  jsonjacksonhacktoberfestjackson-databind

  Java

  •

  Apache License 2.0

  •1.5k1.5k forks•3.7k3.7k stars•9898 issues•1919 pull requests•Updated Apr 23, 2026Apr 23, 2026

• jackson-annotations

  Public

  FasterXML/jackson-annotations’s past year of commit activity
  Core annotations (annotations that only depend on jackson-core) for Jackson data processor

  Java

  •

  Apache License 2.0

  •341341 forks•1.1k1.1k stars•1515 issues•11 pull request•Updated Apr 22, 2026Apr 22, 2026

• woodstox

  Public

  FasterXML/woodstox’s past year of commit activity
  The gold standard Stax XML API implementation. Now at Github.

  xmlxml-parserhacktoberfest+ 1

  xmlxml-parserhacktoberfeststax-api

  Java

  •

  Apache License 2.0

  •8383 forks•248248 stars•3939 issues•44 pull requests•Updated Apr 21, 2026Apr 21, 2026

• jackson

  Public

  FasterXML/jackson’s past year of commit activity
  Main Portal page for the Jackson project

  jacksonhacktoberfestjava-json+ 1

  jacksonhacktoberfestjava-jsonjava-json-library

  1.2k1.2k forks•9.7k9.7k stars•00 issues•00 pull requests•Updated Apr 19, 2026Apr 19, 2026

• jackson-datatypes-misc

  Public

  FasterXML/jackson-datatypes-misc’s past year of commit activity
  Collection of common Jackson datatype modules not part of other multi-project repos

  Java

  •

  Apache License 2.0

  •2121 forks•3434 stars•00 issues•00 pull requests•Updated Apr 16, 2026Apr 16, 2026

• jackson-modules-base

  Public

  FasterXML/jackson-modules-base’s past year of commit activity
  Uber-project for foundational modules of Jackson that build directly on core components but nothing else; not including data format or datatype modules

  Java

  •

  Apache License 2.0

  •8181 forks•180180 stars•3939 issues•00 pull requests•Updated Apr 14, 2026Apr 14, 2026

• jackson-dataformats-text

  Public

  FasterXML/jackson-dataformats-text’s past year of commit activity
  Uber-project for (some) standard Jackson textual format backends: csv, properties, yaml (xml to be added in future)

  jacksonhacktoberfesttextual-formats

  jacksonhacktoberfesttextual-formats

  Java

  •

  Apache License 2.0

  •156156 forks•451451 stars•4040 issues•11 pull request•Updated Apr 13, 2026Apr 13, 2026

• jackson-dataformats-binary

  Public
  Uber-project for standard Jackson binary format backends: avro, cbor, ion, protobuf, smile

  protobufavrosmile+ 3

  protobufavrosmilecborhacktoberfestjackson-backends

  Java

  •

  Apache License 2.0

  •148148 forks•346346 stars•5757 issues•22 pull requests•Updated Apr 13, 2026Apr 13, 2026

• jackson-bom

  Public

  FasterXML/jackson-bom’s past year of commit activity
  Bill of materials POM for Jackson projects

  Logos

  •

  Apache License 2.0

  •3636 forks•7171 stars•11 issue•22 pull requests•Updated Apr 13, 2026Apr 13, 2026

• jackson-module-scala

  Public
  Add-on module for Jackson (https://github.com/FasterXML/jackson) to support Scala-specific datatypes

  serializationjsonscala+ 5

  serializationjsonscalaxmlsmilejacksoncborhacktoberfest

  Scala

  •

  Apache License 2.0

  •139139 forks•509509 stars•5252 issues•33 pull requests•Updated Apr 11, 2026Apr 11, 2026

• jackson-jakarta-rs-providers

  Public
  Multi-module project that contains Jackson-based "new" Jakarta-RS (nee "JAX-RS" -- ones under `jakarta.ws.rs`) providers for JSON, XML, YAML, Smile, CBOR format…

  Java

  •

  Apache License 2.0

  •1212 forks•1717 stars•33 issues•00 pull requests•Updated Apr 11, 2026Apr 11, 2026

• jackson-jaxrs-providers

  Public

  FasterXML/jackson-jaxrs-providers’s past year of commit activity
  Multi-module project that contains Jackson-based "old" JAX-RS (ones under `javax.ws.rs`) providers for JSON, XML, YAML, Smile, CBOR formats

  jax-rsjacksonhacktoberfest

  jax-rsjacksonhacktoberfest

  Java

  •

  Apache License 2.0

  •8383 forks•122122 stars•1515 issues•00 pull requests•Updated Apr 11, 2026Apr 11, 2026

• jackson-module-kotlin

  Public
  Module that adds support for serialization/deserialization of Kotlin (http://kotlinlang.org) classes and data classes.

  kotlinserializationjson+ 4

  kotlinserializationjsonkotlin-librarydeserializationjacksonhacktoberfest

  Kotlin

  •

  Apache License 2.0

  •182182 forks•1.2k1.2k stars•6565 issues•00 pull requests•Updated Apr 11, 2026Apr 11, 2026

• jackson-datatype-hibernate

  Public
  Add-on module for Jackson JSON processor which handles Hibernate (https://www.hibernate.org/) datatypes; and specifically aspects of lazy-loading

  Java

  •107107 forks•330330 stars•3131 issues•33 pull requests•Updated Apr 11, 2026Apr 11, 2026

• jackson-datatype-joda

  Public
  Extension module to properly support full datatype set of Joda datetime library

  Java

  •

  Apache License 2.0

  •8282 forks•147147 stars•00 issues•00 pull requests•Updated Apr 11, 2026Apr 11, 2026

• jackson-datatypes-collections

  Public
  Jackson project that contains various collection-oriented datatype libraries: Eclipse Collections, Guava, HPPC, PCollections

  guavajacksonhacktoberfest+ 1

  guavajacksonhacktoberfesteclipse-collections

  Java

  •

  Apache License 2.0

  •5656 forks•8888 stars•55 issues•00 pull requests•Updated Apr 11, 2026Apr 11, 2026

• jackson-module-jsonSchema

  Public
  (DEPRECATED for Jackson 3) Module for generating JSON Schema (v3) definitions from POJOs

  Java

  •

  Apache License 2.0

  •137137 forks•387387 stars•3434 issues•22 pull requests•Updated Apr 11, 2026Apr 11, 2026

• jackson-jr

  Public
  Stand-alone data-binding module designed as a light-weight (and -featured) alternative to `jackson-databind`: will only deal with "Maps, Lists, Strings, wrapper…

  Java

  •

  Apache License 2.0

  •3535 forks•265265 stars•66 issues•22 pull requests•Updated Apr 11, 2026Apr 11, 2026

• java-classmate

  Public
  Library for introspecting generic type information of types, member/static methods, fields. Especially useful for POJO/Bean introspection.

  hacktoberfestjava-reflectiontidelift

  hacktoberfestjava-reflectiontidelift

  Java

  •

  Apache License 2.0

  •4646 forks•266266 stars•1313 issues•22 pull requests•Updated Apr 2, 2026Apr 2, 2026

• stax2-api

  Public
  Extension API for Stax, Java pull-parsing API (STreaming Api for Xml)

  Java

  •

  BSD 2-Clause "Simplified" License

  •2222 forks•4040 stars•11 issue•00 pull requests•Updated Apr 1, 2026Apr 1, 2026

• jackson-integration-tests

  Public
  Project that contains integration tests across Jackson components

  hacktoberfest

  hacktoberfest

  Java

  •77 forks•44 stars•00 issues•00 pull requests•Updated Mar 28, 2026Mar 28, 2026

• jackson-parent

  Public
  Parent pom for all core Jackson components (but only those -- users should use `jackson-bom`)

  1818 forks•77 stars•00 issues•00 pull requests•Updated Mar 27, 2026Mar 27, 2026

• oss-parent

  Public
  Grandpa pom for all projects under FasterXML git umbrella

  Apache License 2.0

  •1616 forks•88 stars•00 issues•11 pull request•Updated Mar 27, 2026Mar 27, 2026

• jackson-benchmarks

  Public

  FasterXML/jackson-benchmarks’s past year of commit activity
  Project that contains JMH-based micro-benchmarks to help with optimizations

  Java

  •1313 forks•1717 stars•00 issues•11 pull request•Updated Mar 22, 2026Mar 22, 2026

• jackson-modules-java8

  Public
  Set of support modules for Java 8 datatypes (Optionals, date/time) and features (parameter names)

  jacksonhacktoberfestjava-date

  jacksonhacktoberfestjava-date

  Java

  •

  Apache License 2.0

  •121121 forks•416416 stars•1717 issues•00 pull requests•Updated Mar 20, 2026Mar 20, 2026

• aalto-xml

  Public
  Ultra-high performance non-blocking XML processor (Stax API + extensions)

  Java

  •

  Apache License 2.0

  •7373 forks•306306 stars•1515 issues•44 pull requests•Updated Dec 15, 2025Dec 15, 2025

• smile-format-specification

  Public
  New home for Smile format (https://en.wikipedia.org/wiki/Smile_(data_interchange_format))

  hacktoberfestsmile-format

  hacktoberfestsmile-format

  BSD 2-Clause "Simplified" License

  •1414 forks•109109 stars•11 issue•00 pull requests•Updated Aug 27, 2025Aug 27, 2025

• jackson-datatype-guava

  Public archive
  (DEPRECATED) -- moved under `jackson-datatypes-collections`

  Java

  •5252 forks•6969 stars•33 issues•11 pull request•Updated Jan 20, 2025Jan 20, 2025