Kotlin alternatives

Modern JVM language for Android, backend, and multiplatform apps with concise syntax.

  • KotlinThis tool

    Modern JVM language for Android, backend, and multiplatform apps with concise syntax.

    Free plan
    Yes
    Learning curve
    Easy
    Setup
  • Enterprise-grade object-oriented language powering Android, backends, and large systems.

    Free plan
    Yes
    Learning curve
    Advanced
    Setup
  • Apple's safe, fast language for iOS, macOS, watchOS, and server-side development.

    Free plan
    Yes
    Learning curve
    Medium
    Setup
    10-15 minutes depending on platform
  • Versatile language for web apps, data science, automation, AI, and scripting.

    Free plan
    Yes
    Learning curve
    Easy
    Setup
    5-10 minutes for installation
  • Google's compiled language for simple, fast systems programming and cloud-native services.

    Free plan
    Yes
    Learning curve
    Easy
    Setup
    Quick installation and setup
  • Memory-safe systems language with zero-cost abstractions for fast, reliable software.

    Free plan
    Yes
    Learning curve
    Advanced
    Setup
    5-10 minutes
  • Typed superset of JavaScript that adds static types and tooling for large codebases.

    Free plan
    Yes
    Learning curve
    Medium
    Setup
    5 minutes
  • All-in-one JavaScript runtime with bundler, test runner, and npm-compatible package manager.

    Free plan
    Yes
    Learning curve
    Easy
    Setup
    Under 1 minute
  • Foundational systems language for OS kernels, embedded firmware, and performance code.

    Free plan
    Yes
    Learning curve
    Advanced
    Setup
    Minimal; compilers available for all major platforms
  • Microsoft's versatile language for .NET web apps, games with Unity, and enterprise APIs.

    Free plan
    Yes
    Learning curve
    Medium
    Setup
  • High-performance extension of C for games, browsers, databases, and native applications.

    Free plan
    Yes
    Learning curve
    Advanced
    Setup
  • Classic CSS brand mark — the stylesheet language behind every web page's visual design.

    Free plan
    Yes
    Learning curve
    Easy
    Setup
  • Stylesheet language for layout, typography, and responsive design on the modern web.

    Free plan
    Yes
    Learning curve
    Medium
    Setup

How these alternatives were chosen

Tools Kotlin names as alternatives that this directory also publishes, followed by others in Language. The order is not a ranking, and "—" means we have not checked that field — not that the answer is no.