If the user has a Public Profile setting for their picture, it can be viewed by anyone, regardless of whether their profile is locked.
If you are trying to view a locked profile, the best method is to send a request. Avoid any website promising to unlock profiles, as they are likely phishing attempts aimed at stealing your information.
Various third-party tools claim to offer "exclusive" viewing access. These typically fall into two categories: facebook locked profile picture viewer online exclusive
Most websites claiming to offer an "exclusive" viewer for locked profiles are misleading at best and dangerous at worst [3, 4]. These platforms typically fall into three categories: Data Scrapers:
It was a limited demo. A teaser. Someone was selling this capability, and they wanted him to see just enough to crave the full version. If the user has a Public Profile setting
Only confirmed friends can see full-sized profile pictures and cover photos.
Facebook Locked Profile Picture Viewer Online Exclusive: Reality vs. Scams Various third-party tools claim to offer "exclusive" viewing
Using any third-party tool to circumvent Facebook's privacy settings is a direct violation of Meta's Terms of Service. If you are caught using one of these tools, even if it works, Facebook can and will take action. This can range from a temporary restriction to the permanent and irreversible deletion of your account.