This area of repository contains different libraries with various add-on formats which were not included in the core library.
For convenience, they have same groupId, versioning and release cycle as core library.
| Format | Artifact id | Platform | Status | Notes |
|---|---|---|---|---|
| JSON | kotlinx-serialization-json | all supported platforms | stable | |
| JSON-Okio | kotlinx-serialization-json-okio | all supported by Okio platforms | experimental | Extensions on Json for integration with Okio library. |
| HOCON | kotlinx-serialization-hocon | JVM only | experimental | Allows deserialization of Config object from popular lightbend/config library into Kotlin objects.You can learn about "Human-Optimized Config Object Notation" or HOCON from library's readme. |
| ProtoBuf | kotlinx-serialization-protobuf | all supported platforms | experimental | |
| CBOR | kotlinx-serialization-cbor | all supported platforms | experimental | |
| Properties | kotlinx-serialization-properties | all supported platforms | experimental | Allows converting arbitrary hierarchy of Kotlin classes to a flat key-value structure à la Java Properties. |
| Format | GitHub repo and Artifact | Platform | Notes |
|---|---|---|---|
| Avro | sksamuel/avro4k com.sksamuel.avro4k:avro4k | JVM only | This library allows serialization and deserialization of objects to and from Avro. It will read and write from Avro binary or json streams or generate Avro Generic Records directly. It will also generate Avro schemas from data classes. The library allows for easy extension and overrides for custom schema formats, compatiblity with schemas defined outside out of the JVM and for types not supported out of the box. |
| Bson | jershell/kbson com.github.jershell:kbson | JVM only | Allows serialization and deserialization of objects to and from BSON. |
| TOML | akuleshov7/ktoml com.akuleshov7:ktoml-core | all supported platforms | Fully Native and Multiplatform Kotlin serialization library for serialization/deserialization of TOML format. This library contains no Java code and no Java dependencies and it implements multiplatform parser, decoder and encoder of TOML. |
| Minecraft NBT | BenWoodworth/knbt net.benwoodworth.knbt:knbt | all supported platforms | Implements the NBT format for kotlinx.serialization, and provides a type-safe DSL for constructing NBT tags. |
| MsgPack | esensar/kotlinx-serialization-msgpack com.ensarsarajcic.kotlinx:serialization-msgpack | all supported platforms | Allows serialization and deserialization of objects to and from MsgPack. |
| SharedPreferences | EdwarDDay/serialization.kprefs net.edwardday.serialization:kprefs | Android only | This library allows serialization and deserialization of objects into and from Android SharedPreferences. |
| XML | pdvrieze/xmlutil io.github.pdvrieze.xmlutil:serialization | all supported platforms | This library allows for reading and writing of XML documents with the serialization library. It is multiplatform, providing both a shared parser/writer for xml as well as platform-specific parsers where available. The library is designed to handle existing xml formats that use features that would not be available in other formats such as JSON. |
| YAML | charleskorn/kaml com.charleskorn.kaml:kaml | JVM only | Allows serialization and deserialization of objects to and from YAML. |
| YAML | him188/yamlkt net.mamoe.yamlkt:yamlkt | all supported platforms | Allows serialization and deserialization of objects to and from YAML. Basic serial operations have been implemented, but some features such as compound keys and polymorphism are still work in progress. |
| CBOR | L-Briand/obor net.orandja.obor:obor | JVM, Android | Allow serialization and deserialization of objects to and from CBOR. This codec can be used to read and write from Java InputStream and OutputStream. |
| Amazon Ion (binary only) | dimitark/kotlinx-serialization-ion com.github.dimitark:kotlinx-serialization-ion | JVM only | Allow serialization and deserialization of objects to and from Amazon Ion. It stores the data in a flat binary format. Upon destialization, it retains the references between the objects. |
| android.os.Bundle | AhmedMourad0/bundlizer dev.ahmedmourad.bundlizer:bundlizer-core | Android | Allow serialization and deserialization of objects to and from android.os.Bundle. |
| CSV | hfhbd/kotlinx-serialization-csv app.softwork:kotlinx-serialization-csv | all supported platforms | Allows serialization and deserialization of CSV files. There are still some limitations (ordered properties). |
| Fixed Length Format | hfhbd/kotlinx-serialization-csv app.softwork:kotlinx-serialization-flf | all supported platforms | Allows serialization and deserialization of Fixed Length Format files. Each property must be annotated with @FixedLength and there are still some limitations due to missing delimiters. |
| JSON5 | xn32/json5k io.github.xn32:json5k | JVM, Native | Library for the serialization to and deserialization from JSON5 text. |