: Roblox now includes a built-in "Switch Account" feature that allows you to add up to five accounts and swap between them seamlessly without logging out.
: Roblox does not limit how many accounts you can create, and you can even link up to 20 accounts to a single email address. Account Switching - Roblox Support You can add up to five accounts using the Account Switcher. Roblox Support
Roblox itself provides free, safe, and official ways to manage multiple alternate accounts (alts) without needing a generator. Official Ways to Create Alt Accounts
The safest way to get an alt account is to create one yourself through the official Roblox platform.
: You can simply log out of your main account and click Sign Up on the Roblox official page to create a new one.