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Obrion - Free Roblox & Lua Obfuscator

Obrion is a free Lua obfuscator that runs in your browser. Obfuscate Roblox scripts, Luau, and Lua code online in seconds - multi-layer protection, no downloads, no setup. Sign in with a free Discord account, paste your script, run a build, and download protected output that behaves identically but is unreadable to anyone who gets their hands on it.

How it works

  1. Paste your Lua or Luau source into the obfuscator workspace.
  2. Run a build - the full protection pipeline is always applied.
  3. Download the protected script and ship it instead of your source.

Features

  • Multi-layer protection: identifier renaming, string encryption, constant transforms, control-flow flattening.
  • First-class Luau support for Roblox, a dedicated Executor target, plus Lua 5.1 and 5.4.
  • Free plan with the same full pipeline as paid plans - no weakened output.
  • Build history with configuration, sizes, and output for every run.
  • Runs entirely in the browser - no downloads or installs.

Frequently asked questions

Is Obrion a free Roblox obfuscator?
Yes. Obrion includes a free plan that lets you obfuscate Roblox scripts and Luau code online every month at no cost - no downloads or setup required.
How do I obfuscate a Roblox script?
Paste your Lua or Luau source into the Obrion workspace, run a build, and download the protected output. The full obfuscation pipeline is applied automatically.
Does Obrion support Luau?
Yes. Obrion has first-class Luau support for Roblox development, plus Lua 5.1 and Lua 5.4 targets for everything else.
What does a Lua obfuscator protect against?
Obfuscation raises the cost of reading and copying your code - it renames identifiers, encrypts strings, transforms constants, and flattens control flow so your proprietary game logic stays yours.
Do I need to install anything to obfuscate Lua online?
No. Obrion runs entirely in the browser - sign in with a free Discord account, paste your Lua source, and obfuscate it online. No downloads or setup.
How do I protect my Roblox scripts from being stolen?
Run your script through a Roblox script obfuscator like Obrion before releasing it. The multi-layer pipeline makes the source unreadable, so copied code can't be understood or reused.
Does Obrion work with Roblox executors?
Yes. Pick the Executor target and the output is built for executor environments specifically, so it runs correctly where a Luau build might not.
What is the best free Roblox script obfuscator?
Obrion gives you the full multi-layer obfuscation pipeline on the free plan - no weakened output, no per-feature tiers. Paste your script, build, download.
Is there a free Lua obfuscator I can use online?
Yes - Obrion is a free Lua obfuscator that runs entirely in the browser. The free plan applies the same multi-layer pipeline as paid plans, so you can obfuscate Lua scripts at no cost.
Is Obrion a Luau obfuscator too?
Yes. Obrion is a Luau obfuscator with a dedicated Roblox Luau target, alongside Lua 5.1 and 5.4 - pick the dialect your script runs in and the output is built for that environment.

Get started free

Obrion obfuscator workspace - Lua source in the editor with build controls and the target selector