Best Microframeworks for Kotlin

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Compare the Top Microframeworks that integrate with Kotlin as of July 2025

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This a list of Microframeworks that integrate with Kotlin. Use the filters on the left to add additional filters for products that have integrations with Kotlin. View the products that work with Kotlin in the table below.

What are Microframeworks for Kotlin?

Microframeworks are lightweight web application frameworks that provide basic functionality such as routing, request and response handling, templating and input validation. They typically do not include any libraries or helpers for common tasks, leaving developers with the freedom to choose their own libraries for such functions. Microframeworks are designed for applications that require minimal setup and fast development cycles, although they may also be suitable for larger applications. They offer an alternative to full-stack frameworks. Compare and read user reviews of the best Microframeworks for Kotlin currently available using the table below. This list is updated regularly.

  • 1
    Javalin

    Javalin

    Javalin

    You never extend classes and you rarely implement interfaces. Javalin is just a few thousand lines of code on top of Jetty, and its performance is equivalent to raw Jetty code. Due to its size, it's very easy to reason about the source code. Other Java and Kotlin web frameworks usually offer one version for each language. Javalin is being made with inter-operability in mind, apps are built the same way in both Java and Kotlin. Javalin runs on top of Jetty, one of the most used and stable web servers on the JVM. You can configure the Jetty server fully, including SSL and HTTP3 and everything else that Jetty offers. Many lightweight Java and Kotlin web frameworks don't support OpenAPI, but Javalin does.
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  • 2
    Ktor

    Ktor

    Ktor

    Create asynchronous client and server applications. Anything from microservices to multiplatform HTTP client apps in a simple way. Open Source, free, and fun! Ktor is built from the ground up using Kotlin and Coroutines. You get to use a concise, multiplatform language, as well as the power of asynchronous programming with an intuitive imperative flow. Ktor allows you to use only what you need, and to structure your application the way you need it. In addition, you can also extend Ktor with your own plugin very easily. Brought to you by JetBrains, creators of IntelliJ IDEA, Kotlin, and more. Ktor is not only used by our customers but also internally at JetBrains. In addition, you have top-notch tooling support!
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