"Free viewer" tools often require users to download a "viewer application" (usually an .exe file).
Websites, apps, or links claiming to offer this functionality are categorically fraudulent. They operate as vehicles for phishing, malware distribution, identity theft, and financial scams. Users attempting to utilize these services place their own digital security and privacy at significant risk. facebook private profile viewer free link
For an angle, you could explore:
If you want to see a private Facebook profile, your only legitimate options are: "Free viewer" tools often require users to download