It is one of the most common curiosities in the age of social media: "Who is looking at my profile?"
Example: Change s720x720 to s0 (zero) in older Facebook URLs. fb profile picture viewer work
If you'd like, I can show you how to check your current privacy settings or help you report a suspicious app that claims to be a profile viewer. Who views your Facebook profile | Facebook Help Center The Truth About "FB Profile Picture Viewers": Do
These tools are also scams because they require you to upload the target’s image to their server, which stores it for malicious purposes (like creating deepfakes). fb profile picture viewer work