How to find any person by face or by image?

Finding someone online used to require a name, email address, or phone number. Today, with advances in artificial intelligence, a single photo can be enough. Face recognition and image search technologies have changed how people identify, verify, and rediscover individuals across the web.

In this guide, we’ll explain how face and image search works, when it’s useful, and how tools like AIFaceSearch.io help you find publicly available information using an image.

What Is Face Search?

Face search (also called facial recognition search or reverse face search) is a technology that allows you to upload a photo of a person and search for matching faces online.

Instead of relying on text-based data, face search analyzes:

• Facial structure
• Key landmarks (eyes, nose, mouth, jawline)
• Distances and proportions between features

The system then compares this data against millions of publicly available images to find visually similar matches.

What Is Image Search?

Image search is broader than face search. It allows you to search using any image, not just faces. This includes:

• Profile photos
• Screenshots
• Social media images
• Photos from websites or articles

Image search tools analyze colors, shapes, objects, and patterns to find visually similar images or exact duplicates across the internet.