Is that Roblox account an alt?

Paste a username or user ID. Public profile data is scored to estimate whether it's an alt.

How the Roblox alt checker works

Public data only

Account age, friends, followers, badges, favorites, inventory, groups, avatar and naming patterns. Nothing private, no login to Roblox.

Every point explained

Each signal shows how many points it added or removed, so you can see exactly why an account got its score.

A hint, not proof

It can't see Robux, IP addresses or private data. A quiet new main can look like an alt, so don't accuse anyone on a score alone.

How the alt score is calculated

Every account starts at 35 out of 100. Each thing the checker finds on the public profile moves the score up (more like an alt) or down (more like a main account), and the total is kept between 0 and 100.

Score	Verdict	What it means
70–100	Likely alt	Most signals point to a throwaway or secondary account.
50–69	Possibly alt	Mixed signals; leans toward an alt or a very inactive account.
30–49	Probably main	Looks like a real, moderately active account.
0–29	Likely main	Strong history and activity for a primary account.

What it looks at

Account age. The strongest single signal. An account less than a week old gets 30 points added; one that has been around for three years or more has points taken off.
Friends, followers and groups. No friends, no followers and no groups all push toward “alt”. A long friends list, a following, or owning a group pull the other way.
Badges. Official Roblox badges, and badges earned inside games, show that an account has actually been played. The checker also reads when each game badge was earned: ten or more within ten minutes is the mark of a “badge walk” game that hands them out for nothing, so those are set aside and only badges earned at a normal pace count.
Favorites and created games. Favorited games and published places with real visits point to a main. The “username's Place” that Roblox creates automatically doesn't count.
Inventory. Limited items and their resale value, plus clothing and accessories that cost Robux. Free items are ignored, because any new account can pick them up in seconds.
Avatar. A default or barely customised avatar is typical of an account made in a hurry.
Names and profile text. Usernames ending in a run of digits or containing words like “alt” or “backup”, and descriptions that mention a main account. Past username changes count toward “main”.
Verified badge. Roblox-verified accounts are never scored above 10.

Questions about checking Roblox alts

What is a Roblox alt account?: An alt, short for alternate account, is a second account someone makes alongside their main one. People use alts for testing, trading, extra storage or a fresh start. Game and group owners mostly care about the ones made to get around a ban or to hide who is behind an account.
How do I check if a Roblox account is an alt?: Type the username or user ID into the box at the top of this page and press Check. A few seconds later you get a score from 0 to 100, a verdict, the account's public stats, and the list of signals behind the score.
How accurate is the alt score?: It's an estimate, not proof. The checker only sees what Roblox shows publicly, so it can't see IP addresses, Robux, or who owns an account. A new, quiet main with a private inventory can score like an alt, and an alt that someone has dressed up and played on can score like a main.
What does a deep check add?: It looks past the profile at the account's friends. It reads the friends list, estimates how old each friend's account is, looks more closely at a spread of them, and checks which of them are friends with each other. A main account usually sits in a circle of older accounts that know one another; an alt is often surrounded by new, empty profiles. The result is drawn as a web and moves the score up or down. Deep checks need an account.
Can it tell me whose alt an account is?: No. A deep check may point out friends with near-identical usernames, but nothing here can establish who is behind an account, and a shared name is not proof of anything.
Will the person know I checked their account?: No. The checker reads the same public profile information anyone can open on Roblox. Nothing is sent to the account and nobody is notified.
Do I need to log in with Roblox or give my password?: No. You only type the name of the account you want to check. This site never asks for your Roblox login, password or cookie, and you should never give those to any website.
Is it free?: Yes. You can run a few lookups a day without signing up, and more with a free account. Pro raises the daily limit, removes ads and adds bulk checks; the details are on the pricing page.
Is this an official Roblox tool?: No. It's an independent website and isn't affiliated with, endorsed by, or sponsored by Roblox Corporation.