What is a Twitter ID?
A Twitter ID (also known as a Twitter user ID, numerical ID, or snowflake ID) is the permanent internal identifier X (formerly Twitter) assigns to every account. The ID never changes, even when the @username changes. Jack Dorsey's handle is @jack, but his Twitter user ID is just 12, and those two values will always point to the same underlying account.
How to find a Twitter ID
Paste any @handle, profile URL, or the username on its own into the box above. Keep will look up the matching numerical ID and return it alongside the avatar, bio, and follower stats. It works for any public X account, so you can use it to find your own Twitter ID or look up the ID of anyone else. No API key, login, or software install is needed, and the ID is ready to copy straight from the result card.
Handle to User ID conversion
The most common use case is handle to user ID conversion: paste an @username, get the matching numerical Twitter user ID. It is the fastest way to grab the identifier you need for the X API, a webhook rule, or any tool that expects a numeric user_id instead of a handle.
What is a Twitter snowflake ID?
"Snowflake" is the name Twitter gave its ID generation system in 2010. Every user ID, tweet ID, and direct message ID is a 64-bit integer with a timestamp baked into the top bits, which is why Twitter IDs are roughly time-ordered and globally unique. Older accounts have shorter IDs (like @jack's 12) and new accounts get much larger numbers. When an API or documentation asks for your X or Twitter snowflake ID, it is the same number this tool returns.
Twitter ID to username and back again
A Twitter ID is the numerical form of an @username. The two values are tied to the same account, so converting between them just means looking up the pair. If you have the @username and want the ID, paste it above and Keep will return the matching numerical ID. If you have only the numerical ID and want the username, X no longer exposes a public redirect from /i/user/{id} without a login, so the reliable path is to open x.com/i/user/{id} while signed in to X and let the app resolve it to the profile.
When you'd need one
- Wiring up the X API, webhooks, or streaming rules that need a stable
author_id - Embedding a specific user's timeline or list into a site or app
- Handling username changes without losing the reference to the underlying account
- Debugging integrations where the docs ask for a user ID instead of a handle
Frequently asked questions
Is this Twitter ID finder really free?
Yes. There is no sign-up, no paywall, and no per-lookup limit. The tool is free to use.
Can I look up any account's Twitter ID, or just my own?
The finder works for any public X account. You do not need to follow the account, be logged in to X, or hold an API key to use it.
What happens when someone changes their @username?
Nothing changes from the ID's perspective. The numerical user ID is tied to the account, not the handle, so even after a username change the old ID still points to the same account. That is why user IDs are the reliable long-term identifier for API integrations.
Does it work for private or suspended accounts?
Private (protected) accounts return their ID when the public endpoint can still see them. Suspended, deactivated, or otherwise unavailable accounts return a "not found" error because their profile is no longer publicly reachable.
Is a Twitter user ID the same as a tweet ID?
No. User IDs and tweet IDs are both snowflake IDs, but they identify different things. This tool returns user IDs only. A tweet ID is the number you see in a tweet URL, like the portion after /status/ in x.com/username/status/12345.
What information does the finder return?
The numerical user ID, @handle, display name, verified and protected status, avatar, banner, bio, follower count, following count, total posts, and the date the account joined X.
Save posts, threads, and profiles in Keep
Keep turns the things you bookmark on X, like threads, replies, and long posts, into clean, searchable Markdown you can read later or hand to your AI agent. Connect your X account once and every new bookmark syncs automatically.