How to run multiple Roblox clients at once
To run multiple Roblox clients at once, use a multi-instance launcher that removes Roblox’s single-instance lock, letting several Roblox windows open on one computer. Each client runs independently, so you can log a different account into each. Handy for alts, trading between your own accounts, or playing with friends.
The BetterBLOX Roblox account manager signs each account in through Roblox’s own login, with a pasted cookie only as a fallback, and BetterStrap handles the multi-instance side on Windows and Mac, so launching a second or third client is a single click.
Why Roblox only opens one client
The official client is built to run one instance per machine. Try to launch a second and the first window simply comes to the front. Multi-instance launching lifts that restriction so each Roblox window is its own separate process.
How multi-instance launching works
A launcher with multi-instance support starts a fresh Roblox client for every account you launch, keeping each session isolated. You add your accounts once, then start as many as your PC can handle. BetterStrap is the BetterBLOX app that does this: you add each account through Roblox’s own login instead of pasting a cookie, and the saved session is encrypted before it touches disk.
What you can do with multiple clients
Two or more clients open up things one window can’t: trade limiteds between your own accounts, test a game as both host and guest, farm with an alt, or just play alongside a second account with friends. It is convenience for legitimate multi-accounting, not a way around any rule.
Try it: launch a few clients
An illustration of launching several Roblox clients from one place. It does not sign into any real account. It just shows the flow.
- MActiveMainAccountActive
- BBuilderAltSaved
- TTradingAltSaved
- GGfxTesterSaved
Illustrative demo — no real accounts or cookies. BetterLauncher stores each saved session encrypted for your OS user and launches whichever one you set active — one Roblox client at a time.
Multiple-client questions
Why can’t I open two Roblox windows?
Roblox enforces a single-instance lock by default, so a second launch just focuses the window that is already open. That is deliberate. A multi-instance launcher is what lets more than one Roblox client exist on the same PC at the same time.
How many Roblox clients can I run at once?
There is no hard app limit. The practical ceiling is your PC’s RAM, CPU and GPU. Each Roblox client uses its own memory and rendering budget, so two or three run comfortably on most machines while more depends on your hardware.
Does running multiple clients get you banned?
Running several clients for your own accounts is not against Roblox’s rules. Bans come from what you do (ban evasion, botting, breaking game rules), not from the number of windows open. Use multi-instance for legitimate multi-accounting and you are fine.
Do multiple clients need lots of RAM?
Each client roughly repeats Roblox’s normal memory use, so more windows means more RAM. On a modern PC two clients are easy; if you notice stutter, close background apps or lower graphics in the extra clients to free up headroom.
Keep reading
More answers from the account-manager corner of BetterBLOX.
How do you play Roblox on two accounts at once?
Multi-instance launching runs two accounts side by side without logging out and back in.
Read the answerIs it safe to paste your Roblox cookie?
Pasting your .ROBLOSECURITY cookie is risky — a good account manager never asks you to.
Read the answerOne launcher, every account
BetterStrap runs multiple Roblox clients on Windows and Mac, and the BetterLauncher keeps your accounts signed in. Both are free — Premium removes the ad rail and unlocks the theming web app.
See the account manager