---
title: Keyman Developer Reference
---

* [Keyman keyboard language guide and reference](/developer/language)
* [Command line compiler - kmc](kmc)
* [Compiler messages](messages)
* [Keyman keyboard source file layout](file-layout)
* [File types](file-types)
* [BCP 47 language codes](bcp-47)
* [Tools](tools)
* [Custom editor themes](editor-themes)
* [User settings](user-settings)