Roblox multi instance on one PC.

Skip manual relogin. Select accounts from your roster and MultiRBX opens a dedicated client for each one.

Download MultiRBX Install guide

Why players use MultiRBX

Skip manual relogin. Select accounts from your roster and MultiRBX opens a dedicated client for each one.

Whether you run a trading main with storage alts or test a game with multiple QA accounts, switching tabs and re-logging wastes time. MultiRBX keeps every identity in a single roster with live avatars and one-click launch.

How it works

  1. Install the extension via Load Unpacked in chrome://extensions.
  2. Sign into each Roblox account on roblox.com and tap Add Account in the panel.
  3. Open any game page, select accounts, and hit Launch — each opens in its own window.

Key features

  • Parallel launch — multiple Roblox clients on one PC.
  • Same-place join — every selected alt joins the game on your current tab.
  • Instant switch — change active account without logout.
  • Live roster — avatars and usernames in the panel.

Supported browsers

Chrome, Edge, Brave, Arc, Opera, and Vivaldi — any Chromium browser with unpacked MV3 extensions.

Ready to try it? Download MultiRBX free — no sign-up, unlimited accounts.

Download