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Hexana — IntelliJ Plugin Documentation

Hexana is an IntelliJ Platform plugin (plugin ID org.jetbrains.hexana, vendor JetBrains) for WebAssembly and binary analysis. It parses .wasm modules, renders WAT and WIT, integrates with WASM runtimes (Wasmtime, WAMR, GraalVM), exposes a Model Context Protocol (MCP) server for AI-assisted exploration, and ships Java-side code completion for the GraalWasm and Chicory APIs. This documentation set describes the 0.9.x line — initial 0.9 release on 2026-05-07 and 0.9.1 patch on 2026-05-20.

What's in this directory

File Audience Purpose
getting-started.md Users Install Hexana, open a .wasm file, find the main views.
features.md Users Complete capability reference grouped by surface.
file-types.md Users .wasm, .wat, .wit, generic binary (.bin, .elf, .exe).
wit-language.md Users WIT (WebAssembly Interface Types) language support.
run-and-debug.md Users Run configurations, runtime selection (Wasmtime / WAMR / GraalVM), experimental debugging.
mcp-tools.md AI-tool users Hexana's 17 MCP tools, one section per tool.
java-integration.md Java/JVM users GraalWasm and Chicory completion and inspections.
js-integration.md JS / TS users WebAssembly.instantiate imports completion and .instance.exports type inference.
settings.md Users Settings → Tools → Hexana and Settings → Build, Execution → WASM Runtime.
troubleshooting.md Users Common failure modes and resolutions.
changelog-0.9.md All Release notes for the 0.9.x line (0.9, 0.9.1), pinned.
llms.txt LLM agents Curated index for AI assistants reading the docs.

Version and compatibility

  • Plugin version: 0.9.1 (built from release/0.9 branch, commit 9a615b34; initial 0.9 cut at 6a108799).
  • since-build: defined by gradle.properties → defaultSinceBuild. Hexana targets IntelliJ Platform 2024.1+.
  • Optional integrations: the JavaScript plugin (enables JS interop for instance.exports) and the Java module (enables GraalWasm / Chicory completion). Both are loaded when the host IDE bundles them.
  • Required dependency: com.intellij.mcpServer — Hexana registers its toolset against the platform MCP server.

Supported IDEs

IntelliJ IDEA, RustRover, WebStorm, CLion, PyCharm, Rider, PhpStorm, and any other IDE on IntelliJ Platform 2024.1+ that bundles or installs com.intellij.mcpServer. RustRover and CLion users get the natural fit for binary tooling; WebStorm and PhpStorm users get JS interop.

A companion VS Code extension is published separately on marketplace.visualstudio.com and open-vsx.org. See the VS Code section of this site for that product's documentation.

How to read this set

Source of truth

This documentation set describes the 0.9.x line, currently 0.9.1. For unreleased work, see idea-plugin/CHANGELOG.md in the repository root. For the master-branch state, see commit history after 9a615b34.