- This is open source, but I have no idea if it&#x27;s anywhere near the FindFace capability: <a href="http:&#x2F;&#x2F;openbiometrics.org&#x2F;" rel="nofollow">http:&#x2F;&#x2F;openbiometrics.org&#x2F;</a><p>- Not open source, but it has a demo of face searching (<a href="http:&#x2F;&#x2F;www.faceplusplus.com&#x2F;demo-search&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.faceplusplus.com&#x2F;demo-search&#x2F;</a>), and an api.