Grunteon is the third generation of Grunt. A high concurrency JVM bytecode obfuscator framework written in kotlin.
This project is under development starting from November 2025. The alpha test will commence in April
Feel free to join our Discord server for suggestions: https://discord.gg/ysB2fMfeYW
- Resource management
- Config system with localization
- Parallel process pipeline
- Class hierarchy and phantom class
- Module system/ Plugin system
- Renamers and optimizers
- String and number encryption
- Redirect and anti-static analysis
- Control-flow obfuscation
- Miscellaneous obfuscation
Copyright 2026 Endoqa Inc.
Grunteon is a free and open source obfuscator framework licensed under Apache License 2.0
Yapyap is a grunt extension pack licensed under PolyForm Strict License 1.0.0
The license of each Grunt version：
| Generation | Versions | Aim of obfuscation | License | Commercial Use |
|---|---|---|---|---|
| Grunt | 1.0.0-1.5.x | Lightweight and stability | MIT | Allowed |
| Gruntpocalypse | 2.0.0-2.5.x | Diversity and intensity | LGPL3 | Restricted |
| Grunteon | 3.0.0- | Industrial-grade and efficient | Apache2 | Allowed |
