SQLDelight

At a glance

• Editor score
  7.2 / 10
• Pricing
  Open source
• Best for
  Kotlin and multiplatform SQL APIs
• Paid from
  Free
• Facts checked
  20 Sep 2026

• Where it wins

  • Compile-time verification for schemas, queries, and migrations
  • Generates type-safe Kotlin database APIs and query functions
  • Supports Gradle, IDE features, and multiple SQL dialects

• Where it doesn't

  • Focused on Kotlin rather than multiple programming languages
  • HSQL/H2 dialect support is experimental
  • SQL-focused scope may not suit broader code-generation needs

Our verdict on SQLDelight

SQLDelight is an open-source code generation tool for Kotlin applications that turns SQL schema definitions and labeled SQL statements into type-safe Kotlin database APIs. It is designed for teams building Android, JVM, JavaScript, native, or Kotlin Multiplatform applications that want database structure and SQL checked during compilation. Generated database and schema classes, along with type-safe query functions, keep the output closely tied to the SQL being authored.

Its strongest angle is compile-time verification. SQLDelight verifies schemas, SQL statements, and migrations, helping surface database inconsistencies during the build rather than leaving them to runtime. Gradle plugin integration fits Kotlin build workflows, while IDE autocomplete and refactoring support extend the generated-code approach into SQL editing. The supported dialects include SQLite, MySQL, PostgreSQL, and HSQL/H2, with HSQL/H2 identified as experimental. This combination makes it a practical fit when SQL remains central to the application and correctness checks are a priority.

The trade-off is focus. SQLDelight is built around Kotlin and SQL, so teams seeking code generation across several programming languages or a broader application-scaffolding system should consider a different category of tool. Its open-source model and multiplatform coverage suit projects that want a Kotlin-native database layer across Android, iOS, desktop, web, or other supported targets. Choose SQLDelight when typed database APIs, verified migrations, Gradle integration, and IDE assistance matter; look elsewhere when Kotlin is not the target language or database code generation is only a small part of a wider generation workflow.

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SQLDelight pricing

SQLDelight fact sheet

Alternatives to SQLDelight

• OpenAPI GeneratorA flexible open-source toolkit for multi-language API generation and workflow integration.9.3
• Swagger CodegenA broad OpenAPI code generator with strong language coverage and CLI access.9.1
• Spring InitializrA focused, extensible way to start Spring Boot projects with the right build and dependency choices.9.0

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update