Multi Instance
Open several Roblox windows at once. Kairo starts the official, signed Roblox directly, so no bootstrapper gets in the way.
Every account.
One launcher.
Kairo Multi Instance runs several Roblox accounts side by side with the official client, with encrypted sign-ins, live performance and Discord webhooks.
Download: coming soonJoin the Discord
Everything you need, nothing you don't
A focused launcher that stays out of your way.
Encrypted accounts
Sign-ins are encrypted with Windows on your PC and never leave it. Webhook messages never contain cookies or launch tickets.
Server browser
Load public servers for any game, sort them, star your favorites and join one in a click.
Live performance
Watch CPU, memory and ping, and see how much each Roblox window uses. Close any of them from the list.
Webhooks
Get a Discord message when a launch finishes, a window crashes or Multi Instance is toggled.
Your layout
Switch between a sidebar, a top bar and an icon bar. Pick your accent color, theme and sounds.
Popular launchers, one page
Kairo's Apps page finds these on your PC and opens them for you. It never installs anything. Always download from each project's own page.
Bloxstrap
Open-source alternative launcher with a FastFlag editor and mods.
View on GitHub →Froststrap
A Bloxstrap and Fishstrap fork focused on performance and customization.
View on GitHub →Voidstrap
A Bloxstrap fork with a closest-server matchmaker, themes and shaders.
View on GitHub →Fishstrap
A custom bootstrapper with a FastFlags editor, cleaner and channel switcher.
View on GitHub →Questions
Which systems does it run on?
Windows 10 and newer. Kairo is a Python app that opens its interface in an Edge or Chrome app window.
Do I need a bootstrapper like Bloxstrap?
No. Kairo launches the official Roblox itself. If a bootstrapper is running and windows will not open side by side, close it.
Is it safe to use?
Kairo only runs a copy of Roblox that carries Roblox Corporation's valid signature. Running several accounts may still be restricted by Roblox's rules, so read them and use Kairo at your own risk.
Where are my accounts stored?
In an encrypted file on your own PC, protected by your Windows account. Nothing is uploaded.
Is Kairo made by Roblox?
No. Kairo is an independent project and is not affiliated with, endorsed by or sponsored by Roblox Corporation.