Holehe - Holehe checks if an email is attached to an account on sites like Twitter, Instagram, imgur and more than 120 others.
People Background Check - People Background Check is a people search service that provides public records, criminal record...
OSINT Industries - OSINT-powered tools for email and phone number investigations.
PeekYou - PeekYou is a free people look website that spots personals at the focal point of the internet.
Ignorant - Ignorant allows you to check if a phone number is used on different sites like Snapchat, Instagram.
Pipl - The most comprehensive people search. Pipl is the place to find the person behind the email address, social username or phone number.