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What is Facial Search?
Facial recognition is a technology that finds images of the person online based on a photo of their face. It’s like a reverse image search, but for faces specifically.
How does Face Search differ from Reverse Image Search?
Reverse Image Search is trained to recognize similar and identical images. Instead of looking for the same person, it looks for people in similar poses, with similar features or similar backgrounds.
Facial Search looks for specific facial features and matches them to find specific people. It prioritizes similarity in facial features, rather than the whole image.
Who uses facial search for investigations?
Facial search is already used by sectors such as:
- Federal law enforcement agencies
- Local and state police departments
- Border control and immigration agencies
- Intelligence and national security agencies
- International law enforcement organizations
What is a face search API?
Face Search API is a technology that allows any application to add facial search to their catalogue without making a face search tool from scratch. With the API, any company or an individual can add facial search to their own system, application or software, with no need to create their own image index or facial recognition machine learning model.
It takes just a couple of lines of code instead of an extensive and costly software to be able to utilize face search in any application.
Best Face Search API Solutions in 2026
We present two face-search-based applications, each created with a different use-case in mind.
Lenso.ai Face Search
Lenso.ai is an effective facial search tool for companies interested in finding faces online and conducting their own investigations.

What does lenso.ai’s API offer?
- Facial search
- General reverse image search
- Finding people online and returning sources (where the images appeared)
- Sorting and filtering options for easy search - sorting by dates, filtering by domains and keywords, and more

Additionally, with the Developer subscription, you get:
- 5000 unlocks on the main page
- Research Mode
- Advanced Filters (domain, language, date, keyword, size) …and more!

Pixalytica
Pixalytica combines facial recognition with artificial intelligence to create full reports on any person based on a photo of their face.

What does Pixalytica’s API offer?
- Full reports on any person
- Images of a person with online sources
- Information about criminal activity
- Data on high-risk industries the person partook in
- Affiliations with other people
- Information on political activity (PEP) …and more!

Try Pixalytica!
Pixalytica’s demo is free! Try it out:
Face Search API in Law Enforcement - Why is it needed?
Face Search API make the work in law easier - from finding images of any person online to creating full reports on anyone with summary and risk score. If you are interested in learning more about Lenso.ai’s or Pixalytica’s solutions, reach out to us now!
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Lenso.ai One-Time Payment: Reverse Image Search Without a Subscription
If you want to make unlocks on lenso.ai, but you don’t want to be tied to a subscription, here’s a solution you should consider: one-time payment. With one-time payments, you can purchase the product once, make unlocks and decide if you want to switch to a full plan later! This article explains how you can access the one-time payment and all the benefits it offers.
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Using facial recognition and reverse image search for public security intelligence
Public security intelligence should implement and use only the best and most advanced tools that can help during the investigation process and provide support at different stages. How can facial recognition and reverse image search help?
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How do Face Search Tools Work? Facial Recognition AI Models Explained.
Have you ever used a facial search tool and wondered how it works? In this article, we will explain the basics of facial recognition and tell you how face search websites build their own AI for face search engines.
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Top 10 Reasons Why Lenso.ai Is the Best Face Search Tool Online
There are multiple facial search tools available on the internet. Most of them cost a lot, but do very little. Others provide low quality of results, show paywalls before the search even starts, or reel customers in by false advertising. Lenso.ai is the best facial search tool online, and here are some of the top reasons that prove it.
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How Reverse Image Search Catches Stolen Before-and-After Photos in Home Service Marketing
A tree service in one state removes a storm-damaged oak, photographs the cleanup, and posts the before-and-after shots on Instagram. Eighteen months later, a company three states away is running the exact same photos as their own work on a Google Business Profile, cropped slightly and stamped with a different logo. Nobody at the original company notices, because nobody's looking. Nobody at the second company worries about it, because nobody's ever gotten caught.