Most sites that promise to "unlock" a private profile without an account or verification are . They often lead to: 4+ Ways to View Facebook Without Creating An Account

If you have the URL of a specific profile (e.g., ://facebook.com ), you can sometimes view it by pasting the link into a browser where you are logged in.

You will be able to see the user’s name and profile picture if their account is active.

Google and Bing index millions of public Facebook profiles and pages. You can bypass the need for an account by using a specific search string to find public content directly.