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Katton

Hot-reloadable Kotlin scripting for Minecraft Fabric, NeoForge, and Paper

Quick Start

API Docs

Katton Live Preview

What can Katton do

Check out those snippets to get a quick glimpse of what Katton's capable of

RegistryRegister Native Blockkotlin

 registerNativeBlock(
    id = "qwq:test_block",
    registerMode = RegisterMode.RELOADABLE
) { props ->
    Block(
        props
            .strength(3.0f, 6.0f)
            .requiresCorrectToolForDrops()
    )
}

Script Packs

Organize Kotlin and Java sources into local or world-specific packs with manifests, state files, and optional client sync.

Platform Aware

Use Fabric and NeoForge for full client/mod features, or Paper for server-only Bukkit scripting and Folia-aware scheduling.

Hot Reload

Reload events, registries, injections, rendering hooks, and datapack mutations without restarting your workflow.