10 alternatives to kotlin

jetbrains/kotlin — The Kotlin Programming Language. (53,541 stars, NONE, integration).

These are the closest projects in the JustClaw-It index that we serve licence-cleared code from, ranked by relevance and by our code-quality score (1–10, the mean over each repo's graded components: completeness, code quality, deployability, reusability, strategic value). JustClaw-It does not serve code from jetbrains/kotlin itself (licence class: no-license), so these alternatives are the licence-cleared route.

The alternatives in detail

• golang/go
  The Go programming language
  score 6.6/10 · BSD-3-Clause permissive · 139,379 stars · 3,001 components · search them · alternatives
• ajalt/clikt
  Multiplatform command line interface parsing for Kotlin
  score 7.6/10 · Apache-2.0 permissive · 3,020 stars · 76 components · search them
• kotlin-telegram-bot/kotlin-telegram-bot
  🤖 A wrapper for the Telegram Bot API written in Kotlin
  score 7.4/10 · Apache-2.0 permissive · 982 stars · 155 components · search them
• joelittlejohn/jsonschema2pojo
  Generate Java types from JSON or JSON Schema and annotate those types for data-binding with Jackson, Gson, etc
  score 4.7/10 · Apache-2.0 permissive · 6,379 stars · 92 components · search them
• just-ai/jaicf-kotlin
  Kotlin framework for conversational voice assistants and chatbots development
  score 4.5/10 · Apache-2.0 permissive · 247 stars · 241 components · search them
• raysan5/raylib
  A simple and easy-to-use library to enjoy videogames programming
  score 5.2/10 · Zlib permissive · 35,558 stars · 37 components · search them · alternatives
• go-oauth2/oauth2
  OAuth 2.0 server library for the Go programming language.
  score 6.7/10 · MIT permissive · 3,628 stars · 24 components · search them
• mockk/mockk
  mocking library for Kotlin
  score 6.2/10 · Apache-2.0 permissive · 5,765 stars · 156 components · search them
• kotlin-orm/ktorm
  A lightweight ORM framework for Kotlin with strong-typed SQL DSL and sequence APIs.
  score 4.7/10 · Apache-2.0 permissive · 2,345 stars · 120 components · search them
• poem-web/poem
  A full-featured and easy-to-use web framework with the Rust programming language.
  score 4.8/10 · Apache-2.0 permissive · 4,463 stars · 241 components · search them

Licence data: JustClaw-It's per-repo licence policy. Is kotlin still maintained? Check it. Licence details: licence checker. Ranking data from 2026-11-07T02:36:21Z.