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Free tool

Twitter username history checker

See how many times an X (Twitter) account changed its username and when it last did, with its permanent user ID and creation date. It shows what X publishes: the count and the last date, not the old names.

3 credits per account, from your free Weir credits (5,000 a month, no card).

What the checker reads

X has an About this account screen on every public profile. It lists where the account is based, how it connects, when it joined, and how many times its username has changed. The checker reads that screen through Weir's API for up to 10 accounts at once and puts the username facts first. For where an account is based, use the X account location checker, which reads the same screen.

Finding the old names

X does not publish them, so no tool can list them from X. Old names survive in archived copies of the profile, in replies that still mention the old handle, and in posts by other people. Our guide to Twitter username history shows each method with an example. To get the permanent ID of an account first, use the Twitter ID finder.

Questions

How do I check if a Twitter account changed its username?

Type the username, or paste the profile link, and press Run. The checker reads X's own About this account data and shows how many times the username changed, the date of the last change, the day the account was created, and its user ID. You can check up to 10 accounts in one run.

Can I see someone's old Twitter usernames?

Not from X. X publishes how many times a username changed and when it last changed, not the earlier names, and this tool shows exactly that. To look for an old name, search the Wayback Machine for the profile, or look for old replies that still mention it: our guide to Twitter username history walks through both.

What does a recent username change mean?

On its own, nothing: people rebrand. It matters when you are deciding whether to trust an account. An account that was created years ago, changed its username last month and now promotes a token or a giveaway may have been bought or repurposed. Treat a recent change as a reason to look closer, not as proof.

Does the user ID change when the username changes?

No. The numeric user ID stays the same for the life of the account, whatever the handle. Save the ID and you can find the account again after a rename, with the Twitter ID finder or the API.

Why is an account not found?

X does not show About this account data for an account that does not exist, is suspended, or is protected. Those return not found here, and a lookup that finds nothing is not charged.

What does a check cost?

3 credits per account on Weir's free plan of 5,000 credits a month, with no card. Ten accounts are 30 credits.