The Kotlin Programming Language.

IdeaVim – A Vim engine for JetBrains IDEs

A simple and modern Java and Kotlin web framework

Kotlin/Native infrastructure

An anti-bikeshedding Kotlin linter with built-in formatter

Λrrow - The perfect companion for your Kotlin journey - Inspired by functional, data-oriented and concurrent programming

Outliner for taking notes and managing to-do lists

Functional constructs for Kotlin

Firefox's Lockwise app for Android

IntelliJ IDEA plugin for Haskell

Rainbow highlighting identifiers and delimiters for IntelliJ IDEA-based IDEs

This is a Kotlin compiler plugin for a compile-time indent trim of raw String.

IntelliJ plugin for several experimental programming languages here

Provides fully-fledged multishot delimitied continuations in Kotlin with Coroutines