google/ksp

Health v2 · maintenance only

Adoption not part of the score

3475 stars · 415 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Kotlin Symbol Processing (KSP) is an API from Google for developing lightweight Kotlin compiler plugins, primarily used for annotation processing and code generation. It offers a simplified alternative to KAPT with up to 2x faster processing and integrates via Gradle.

Use cases

• generate boilerplate code from annotations in Kotlin
• replace KAPT with faster annotation processing
• write lightweight Kotlin compiler plugins
• process Kotlin symbols at build time
• speed up Room or Moshi code generation in Android builds
• run annotation processors on Kotlin multiplatform projects

When to choose

• you maintain a Kotlin annotation processor and want better build performance than KAPT
• you need to analyze or generate Kotlin source code during compilation
• you build Android or JVM libraries that rely on code generation

When to avoid

• you need full compiler plugin capabilities like changing compiler behavior or IR transformations
• your project is not Kotlin/JVM-based
• you only need simple build-time scripting without code analysis

Facets

library · maturity active

compiler parser build-tool programming-languages developer-tools compilers jvm kotlin annotation-processing compiler-plugin kapt-alternative symbol-processing gradle-plugin code-generation gradle android

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