How to find a Discord user ID
- Open Discord and go to Settings, Advanced, then turn on Developer Mode.
- Right-click a username anywhere (or tap and hold on mobile) and choose Copy User ID.
- Paste it above. Server IDs and message IDs are the same kind of number, so the creation date works for those too.
What the lookup can and cannot tell you
A Discord ID is a snowflake: 64 bits, the first 42 of which are the number of milliseconds since 1 January 2015. That is why the creation date can be read from the number itself, offline, with no API call. The rest of the number identifies the machine that issued it and a counter. There is no name, email, IP or location inside it, and Discord does not provide those through any other route either.
Username, display name and avatar are live profile fields that need a Discord API request. When this tool is connected to the API it shows them below the creation date; otherwise it shows the dates alone.
Why account age is the useful part
Operators look up accounts for one reason: to tell real members from throwaway ones. An account created the same week it joined your server, with a default avatar, is a bot or a raid account most of the time. Checking one at a time is fine for a suspicious DM. For a whole server, export the member list with WiseCord: the creation date and the join date are both columns, so sorting by either shows you the pattern in seconds. See the Discord member list page for how that works, and the Discord tracker page for watching new joins as they happen.