Random name checker

How it works

You already have a string. The checker compares that string with a roster, a used pile, a banned list, or a format rule. The result is a verdict, not a winner. If the tool sometimes emits a new name you never typed, it has switched jobs and become a generator. If it spins a wheel, it has become a picker. Keep the job in one sentence: this name, this test, this answer.

The word random in the query is leftover from nearby tools. The check itself should be stable. The same name against the same list must come back the same way. A page that changes its mind after a refresh is not checking. It is rolling a die and dressing the die as a clipboard. Stability is how you catch a duplicate, an absence, or a spelling clash.

Decide the matching rule before the first test. Is “Alex” the same person as “Alexander”? Does a middle initial count? Are accents ignored? A checker that folds case and a checker that does not will disagree on “McDonald” and “Mcdonald.” Write the rule down. Then run names through it. Changing the rule until a favourite passes is not a check. It is editing the exam.

Presence: is the name on the list at all. Uniqueness: does it appear once, or more than once. History: has it already been used in this round. Form: does the spelling, order, and identifier match what you agreed to store.

A username or domain check is the same shape with a different dictionary. You type a string. A registry answers taken or free. Free means unused in that system. It does not mean the name is wise, legal, or kind. A classroom roster check cannot see a website's accounts. Do not ask a roll sheet whether an email is available.

Pass, fail, and the list you owe people

Pass means the name survived the test you named. It does not assign a prize. It does not prove the name is original on earth. If you still need a winner, take the names that passed and run a picker on that shorter list. Keep the two steps apart so nobody can claim the check was the draw.

Fail should say why. “Not on the list” is a missing row. “Already drawn” is a used row. “Two rows match” is a duplicate. A silent no cannot be fixed. A named collision can: merge the rows, restore the missing person, or correct the spelling. Hide the match and the checker becomes a wall.

If you keep tweaking letters until the checker says yes, you stopped checking a name and started guessing a password. Save the list with a date. Tomorrow's argument will be about whether Jordan was on Tuesday's sheet, not about philosophy. A screenshot of a green tick without the list is a souvenir. The list is the evidence. If you must audit a raffle, store the list you checked, the name you asked about, and the verdict, together.