Why 'random' matters more than people think
A lot of online name pickers animate a spinning wheel but choose the result with ordinary JavaScript randomness seeded in ways that are easy to bias, or worse, hard-code the same handful of outcomes to look varied. For a friendly office pick that's harmless. For a real raffle, a giveaway with rules, or a classroom drawing that needs to be defensible, it matters that the process is actually fair.
Spinzelvo picks the winning name using the browser's Web Crypto random number generator before the wheel starts spinning — the deceleration you watch is purely visual. That means the result isn't influenced by timing, clicking, or anything else, and every name on the wheel has an equal (or, if duplicated, proportionally weighted) chance.