Kotlinx Serialization

Kotlinx Serialization is a Kotlin library for converting Kotlin objects into serialized formats like JSON, XML, CBOR, and Protobuf, and vice versa. It provides a declarative, type-safe approach to serialization using Kotlin's language features such as data classes and annotations, eliminating the need for reflection-based solutions. The library is part of the Kotlin ecosystem and integrates seamlessly with Kotlin Multiplatform projects.

Also known as: kotlinx.serialization, kotlin serialization, kotlinx-serialization, Kotlin Serialization, Kotlinx Serialization Library

Why learn Kotlinx Serialization?

Developers should use Kotlinx Serialization when building Kotlin applications that require efficient and safe data serialization, especially in Android, server-side (e.g., Ktor), or cross-platform projects. It's ideal for scenarios like API communication, data persistence, or configuration handling, as it offers compile-time safety, reducing runtime errors and improving performance compared to reflection-based libraries like Gson or Jackson.

Learning Resources

• docs: Kotlinx Serialization Official Documentation
• tutorial: Kotlin Serialization Guide by Kotlin
• tutorial: Kotlin Serialization Tutorial by Baeldung
• course: Kotlin Serialization Course on Udemy
• video: Kotlin Serialization Video by Philipp Lackner