Lua Obfuscator Comparison 2026
Choosing the right Lua obfuscator can be confusing with so many options available. This comparison breaks down the major players in 2026 so you can make an informed decision.
The Contenders
RoxGuard
- Type: Free + Premium tiers
- Speed: ~50-100ms
- VM Protection: Yes (custom bytecode VM)
- Key Feature: Server-bound encryption, fastest processing
Luraph
- Type: Paid subscription
- Speed: 1-5 seconds
- VM Protection: Yes (LPH_ENCFUNC)
- Key Feature: Industry standard, large user base
Moonsec
- Type: Paid
- Speed: 2-10 seconds
- VM Protection: Yes
- Key Feature: Strong anti-tamper, established reputation
PSU (Psu Obfuscator)
- Type: Free
- Speed: Fast
- VM Protection: Limited
- Key Feature: Free, basic protection
Feature Comparison
| Feature | RoxGuard | Luraph | Moonsec | PSU |
|---|---|---|---|---|
| String Encryption | ✅ Multi-layer | ✅ | ✅ | ✅ Basic |
| VM Protection | ✅ Custom | ✅ LPH | ✅ | ❌ |
| Control Flow Flatten | ✅ | ✅ | ✅ | ❌ |
| Anti-Tamper | ✅ XOR + HMAC | ✅ | ✅ | ❌ |
| Server-Bound Keys | ✅ XTEA-CBC | ✅ | ❌ | ❌ |
| Dead Code Injection | ✅ | ✅ | ✅ | ❌ |
| Opaque Predicates | ✅ MBA-based | ✅ | ✅ | ❌ |
| Speed | ⚡ 50-100ms | 🐌 1-5s | 🐌 2-10s | ⚡ Fast |
| Free Tier | ✅ | ❌ | ❌ | ✅ |
| Roblox Support | ✅ | ✅ | ✅ | ✅ |
Speed Comparison
Processing time for a typical 100KB script:
RoxGuard: ████ 87ms
PSU: ████████ ~200ms
Luraph: ████████████████████████████████ ~3,200ms
Moonsec: ████████████████████████████████████████ ~5,000ms
RoxGuard's C++ backend processes scripts 30-60x faster than cloud-based alternatives.
Security Depth
Not all VM protection is created equal. Here's what makes advanced obfuscators stand out:
Decision-Tree Dispatch
Instead of simple if/else opcode routing, advanced VMs use mathematical functions that can't be pattern-matched. RoxGuard and Luraph both use this technique.
Structure-of-Arrays Bytecode
Each bytecode field (opcode, operands) is encrypted with a separate key. Even if one key is found, the other fields remain encrypted.
Multi-Pass Encryption
Two layers of encryption (e.g., substitution cipher + RC4) mean finding one key isn't enough to decrypt the bytecode.
Which Should You Choose?
- Budget-conscious or getting started? → RoxGuard (free tier with VM protection)
- Need maximum protection for paid scripts? → RoxGuard or Luraph
- Speed is critical (CI/CD pipelines)? → RoxGuard (50-100ms vs seconds)
- Already using Luraph? → Try RoxGuard's free tier and compare output strength
Conclusion
The obfuscation landscape has evolved significantly. Free tools now offer protection that was previously only available in expensive paid products. The key differentiator in 2026 is speed and server-bound encryption — and RoxGuard leads in both categories.
Compare for yourself. Obfuscate a script with RoxGuard and see the difference.