Syro

roblox script executor for windows

Download Docs

v1.3.0 for Windows 10 and 11, x64

86/86
sUNC functions
140/140
Myriad
172
documented functions

Roblox 741, 1 October 2026. sUNC 2.1.5’s own run reports 83 of 86: three checks reject the client’s bytecode version.

Script Hub

ScriptBlox search inside Syro. Filter by verified or no key, read the code, then run it or open it in a tab.

The Script Hub: a grid of scripts and, for the picked one, its details and code

Multi-instance

Attach to several Roblox windows and run one script in all of them, or Ctrl+click the ones you want.

The Clients page: three attached Roblox windows and the saved accounts

MCP

Connect Claude Code or Codex to the game you’re attached to.

Turn it on in Settings, under Advanced.

Find the remote the shop uses when you buy something.

  • search-instancesReplicatedStorage, name “Shop”4 results
  • script-grep“FireServer” in ShopController2 matches
  • get-script-contentShopController, lines 46 to 494 lines
  • remote-spylist, BuyItem3 calls

The shop fires Remotes.BuyItem with (itemId, amount) from ShopController, line 48.

Functions

API reference

Features

  • Monaco editor

    The VS Code editor, set up for Luau.

  • Tab recovery

    Tabs and unsaved edits are saved every 2 seconds.

  • Console redirect

    Roblox output in Syro instead of F9.

  • Autoexec

    Runs the Autoexec folder when you join a game and after a teleport.

  • Account manager

    Save accounts and launch Roblox with any of them.

  • Auto update

    Downloads in the background, installs when you close Syro.

Download

No admin rights needed.

Download for Windows
  1. Run SyroBootstrapper.exe. It installs Syro in %LOCALAPPDATA%\Programs\Syro and opens it.
  2. Join a game in Roblox, then click Attach in Syro.
  3. Press F5 to run the open script.

If SmartScreen blocks it, click More info, then Run anyway. Syro needs the WebView2 runtime, which Windows 10 and 11 already have.