Scala Kotlin

Open-source Scala projects categorized as Kotlin
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Top 5 Scala Kotlin Projects

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Kotlin

  1. Gatling

    Modern Load Testing as Code

    Project mention: JMeter vs Gatling: Comparison for Modern Performance Testing | dev.to | 2026-03-22

    And in that world, Gatling has a clear edge.

  2. AppSignal

    Monitoring that respects your time & budget. APM, error tracking, and dashboards for modern web apps. Ten-minute setup, transparent flat pricing, and support from engineers who actually use the product.

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  3. Mill

    A better build tool for Java, Scala and Kotlin: Simpler than Maven, easier than Gradle, with 3-7x faster dev workflows than other JVM build tools

  4. SwayDB

    Persistent and in-memory key-value storage engine for JVM that scales on a single machine.

  5. stasis

    Multiplatform backup and recovery system with emphasis on security and privacy (by sndnv)

  6. bazel-multiversion

    Bazel rules to resolve, fetch and manage 3rdparty JVM dependencies with support for multiple parallel versions of the same dependency. Powered by Coursier.

  7. Kargo

    Stop Scripting Promotions. Start Shipping with Kargo. Kargo automates promotion across dev, staging, and prod with approval gates and verification. Open source, built by the team behind Argo CD. Download now.

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NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

Scala Kotlin discussion

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Scala Kotlin related posts

  • Scala 3 Migration: Report from the Field

    4 projects | news.ycombinator.com | 6 Feb 2025

  • [Request] Open source large (web/mobile) projects with best practices

    3 projects | /r/ExperiencedDevs | 1 Jun 2021

  • Scala is a Maintenance Nightmare

    5 projects | /r/programming | 22 Mar 2021

Index

What are some of the best open-source Kotlin projects in Scala? This list will help you:

# Project Stars
1 Gatling 6,954
2 Mill 2,782
3 SwayDB 296
4 stasis 165
5 bazel-multiversion 50

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