What is a Facebook UID?
A Facebook UID (User ID) is a unique numeric identifier assigned to every Facebook profile, page, and group. While Facebook displays usernames and custom URLs publicly, the UID is the permanent internal ID that never changes — even if the user changes their username or profile URL.
Facebook UIDs are essential for developers building apps with the Facebook Graph API, marketers running targeted ad campaigns, and researchers analyzing social media data. Unlike usernames which can be modified, the numeric UID provides a stable reference point for any Facebook entity.
How to Find Facebook UID
Copy the Facebook URL
Go to the Facebook profile, page, or group and copy the URL from your browser's address bar.
Paste the link above
Paste the copied URL into the input field at the top of this page.
Click "Get UID"
The numeric UID will be displayed instantly. Click the copy button to copy it to your clipboard.
Supported Facebook Link Types
Personal Profiles
facebook.com/username
Facebook Pages
facebook.com/pagename
Facebook Groups
facebook.com/groups/groupname
Locked Profiles
Works with locked/restricted profiles too
Frequently Asked Questions
Is this tool free to use?
Yes, 2uid.net is completely free. No registration or login required.
Can I find the UID of a locked Facebook profile?
Yes, our tool can retrieve the UID of locked, checkpointed, and restricted Facebook profiles.
Does the Facebook UID ever change?
No. The numeric UID is permanent and stays the same even if the user changes their username or vanity URL.
What can I do with a Facebook UID?
UIDs are used for Facebook Graph API calls, ad targeting, building custom audiences, app development, and data analysis.