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Protect your code from theft and reverse engineering

VM bytecode obfuscation for Lua, JavaScript, Python, Java, PHP, Go, Ruby and Kotlin. Your source is compiled into encrypted bytecode that runs inside a custom virtual machine, so there is nothing readable left to copy.

Start for free See pricing
200 free credits28 protection layers8 languagesNo card required

Obfuscators for every stack

Purpose-built protection for each language and platform. Pick yours.

Lua Obfuscator
Roblox, FiveM and Garry's Mod scripts
Roblox Obfuscator
LocalScripts and ModuleScripts, no loadstring
FiveM Obfuscator
ESX, QBCore and standalone resources
Garry's Mod Obfuscator
gLua addons and gamemodes
JavaScript Obfuscator
Node, browser and Discord bots
Python Obfuscator
Bots, scripts and business logic
Java Obfuscator
Spigot, Paper and Bukkit plugins, JARs
PHP Obfuscator
WordPress plugins, Laravel and SaaS
Go Obfuscator
Symbol and string hardening before compile
Ruby Obfuscator
Rails apps, gems and scripts
Kotlin Obfuscator
JVM and Android source

Why developers choose Joker

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VM bytecode, not renaming. Your code is compiled and virtualized. There is no source-shaped thing left to rename back or beautify.
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Unique every build. Polymorphic output means no two builds look alike, so per-family deobfuscators do not amortize.
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Anti-tamper. Edited output silently produces wrong results instead of crashing, which makes patching impractical.
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Runs where you ship. Tested on real Roblox games, FiveM resources, Garry's Mod addons and Spigot plugins. No loadstring required on Roblox.
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We never store your source. Code is processed in memory and deleted. 200 free credits on signup, no card required.

Anti-AI protection, the honest version

Joker offers an optional server-keyed protected mode. The payload is encrypted and the decryption key is held on our server and fetched at runtime, so a static tool or an LLM cannot rebuild your source from the file alone. Access can be gated with license keys, hardware ID lock, expiry and instant revocation, which is ideal for selling paid scripts.

The honest limit: any code that actually runs can, in principle, be dumped from memory while running. No obfuscator on earth prevents that. What server-keying adds is that access becomes authenticated, revocable and traceable, not that the code becomes physically unextractable. We would rather tell you that than sell you a myth. Read the full breakdown.

Guides

In-depth, hype-free writing on how code protection actually works.

Frequently asked

Does the obfuscated code still run normally?
Yes. Your program behaves identically. Only the source becomes unreadable.
Will it slow my code down?
For typical game scripts and app logic the overhead is negligible.
Does it work with Roblox and FiveM?
Yes. No loadstring required on Roblox, and it works with ESX and QBCore on FiveM. Tested on real games and resources.
Is my source code safe with you?
We never store or log your code. It is processed in memory and deleted.

Ready to protect your code?

200 free credits on signup. No credit card. No commitment.

Get started free