Home

Haxe Toolkit Support brings the Haxe language to IntelliJ IDEA. It covers the whole development loop: writing code with completion and refactoring, building for any target, running, debugging, testing and profiling.

Note

Version 2.0 changes how projects are configured. Settings now live in the Haxe tool window and in your build files, instead of in Project Structure. Projects set up with 1.x need a one-way migration, so back them up first. See Migrating from 1.x.

Important

This wiki documents version 2.0 and newer. There is no documentation for version 1.x.

Where to start

1. Installation: install the plugin and a Haxe SDK.
2. Your First Project: create a project or open an existing one.
3. Core Concepts: modules, build files, the resolve context, targets and language levels. Read this once; the rest of the plugin builds on it.

Coming from version 1.x? Start with Migrating from 1.x.

What the plugin covers

Area	What you get	Start here
Projects	hxml, Lime, OpenFL, NME and HXP build files; the build each file is analyzed under; targets; defines; haxelib libraries	The Haxe Tool Window
Building and running	build commands, custom actions, run configurations for every target	Building and Running
Debugging	HashLink, HXCPP, JavaScript in the browser and in Node.js, the interpreter, Flash and AIR	Debugging Overview
Testing	utest, munit, buddy and tink_unittest, with gutter markers (except buddy) and results in the test runner	Unit Tests
Profiling	HashLink, HXCPP, AIR, JavaScript in Chromium-family browsers	Profiling Overview
Editing	completion, compiler diagnostics, inspections, refactorings, formatting	Code Completion
Settings	every settings page and option in one place	Settings Reference

Requirements

• IntelliJ IDEA 2026.2 or 2026.3. The profilers, Flash/AIR debugging and the project diagram need an IntelliJ IDEA Ultimate subscription; everything else works without one.
• A Haxe SDK. Most features work with any Haxe 4 release. The debuggers need Haxe 4.1 or later, and compiler diagnostics need Haxe 4.3.5 or later, or Haxe 3.4.7. See Supported Versions.

The plugin is available on the JetBrains Marketplace and on the GitHub releases page. See Installation.

Labels used in this wiki

• Beta: works and is supported, but may still change.
• Experimental: may be incomplete; feedback is especially welcome.
• IntelliJ IDEA Ultimate: needs an IntelliJ IDEA Ultimate subscription.

Getting help

Look in Troubleshooting and FAQ first. To report a bug or ask a question, open an issue on GitHub. Include the plugin version, the IDE version and your Haxe version.