Enigma VSCode

Enigma, the tool for deobfuscating Java bytecode, as a VS Code extension.

Unofficial port, not affiliated with the Quilt Project.

Features

• Rename classes, methods, fields and parameters by typing over them in the decompiled code
• Enigma's class trees, Identifier, Structure, and Inheritance and Calls panes
• All of Enigma's mapping formats, with undo, package renames and statistics
• Vineflower, CFR and Procyon decompilers
• Collaboration through Enigma servers
• Tools for AI assistants, in VS Code's chat and over MCP

Usage

Requires Java 17 or newer, which is found automatically.

Run Enigma: Open Jar..., open a class from the Enigma side bar, and type over a highlighted name. Save with Enigma: Save Mappings As....

For assistants outside VS Code, such as Claude Code, run Enigma: Connect an Assistant over MCP....

Building

Requires Node.js 22 or newer and JDK 17 or newer.

git clone --recursive https://github.com/Dani-error/enigma-vscode.git
cd enigma-vscode
npm install
npm run package

The extension is written to build/enigma-vscode-<version>.vsix.

Contributing

Run npm run check, npm run test:backend and npm test before opening a pull request. Both test runs fail when they cover less than they do now; their reports are in build/coverage/e2e and backend/build/reports/jacoco. Translations are in l10n/.

CI runs all of it on Linux, macOS and Windows, and on the oldest VS Code supported. Pushing a tag such as v1.0.0 releases that version: the .vsix is attached to a GitHub release, and published to Open VSX when the repository has the OVSX_PAT secret. It is uploaded to the Marketplace by hand, at marketplace.visualstudio.com/manage.

License

LGPL-3.0-or-later. See THIRD_PARTY_NOTICES.md for bundled libraries.