How to Protect Your Roblox Scripts from Being Stolen

If you create Roblox scripts — whether for personal projects, communities, or sale — protecting your intellectual property is crucial. Without protection, anyone can read, copy, and redistribute your work. Here's how to lock down your scripts.

The Problem

Lua is an interpreted language, which means:
- Your source code is directly readable
- Anyone with the script can see your logic
- License checks can be easily removed
- API keys and endpoints are exposed

Protection Methods (Ranked by Strength)

1. Variable Renaming (⭐ Weak)

The simplest form of obfuscation. Variables like playerSpeed become a1b2c3.

Pros: Easy, no performance impact
Cons: Logic is still readable, trivially reversible

2. String Encryption (⭐⭐ Basic)

All string literals are encrypted and only decrypted at runtime.

Pros: Hides API URLs, messages, keys
Cons: Can be logged at runtime

3. Control Flow Flattening (⭐⭐⭐ Good)

Your code's execution order is scrambled into a state machine.

Pros: Very hard to follow manually
Cons: Advanced tools can recover the flow

4. VM Protection (⭐⭐⭐⭐ Strong)

Your code is compiled into custom bytecode that runs on a private virtual machine.

Pros: Extremely difficult to reverse-engineer
Cons: Slight performance overhead

5. Server-Bound Encryption (⭐⭐⭐⭐⭐ Maximum)

Script content is encrypted with keys that only exist on the server. Each execution gets a unique key derived from the user's identity.

Pros: Impossible to extract without server access
Cons: Requires internet connection

Recommended Protection Stack

For maximum security, layer multiple protections:

Your Script
    ↓ String Encryption
    ↓ Control Flow Flattening
    ↓ VM Protection
    ↓ Anti-Tamper Checks
    ↓ Server-Bound Keys
= Protected Script

Key System Integration

A key system adds another layer by requiring users to complete a verification before executing scripts:

1. User requests access on your website
2. Complete a task (e.g., ad gateway)
3. Receive a time-limited key
4. Key is validated server-side on each execution

Common Mistakes

• Obfuscating only strings — Attacker can still read your logic
• Using free obfuscators without VM — Easily reversed with public tools
• Hardcoding API keys — Use server-side validation instead
• No anti-tamper — Attacker can patch out license checks
• Single-layer protection — Always stack multiple techniques

Try RoxGuard

RoxGuard provides enterprise-grade protection for free:

• ✅ VM Protection with custom bytecode
• ✅ String Encryption (RC4 + key fragmentation)
• ✅ Control Flow Flattening
• ✅ Anti-Tamper with integrity checks
• ✅ Server-Bound Key Encryption
• ✅ Under 100ms processing time

Protect your scripts now →

Don't let your hard work get stolen. Obfuscate with RoxGuard — free, fast, and secure.