Instant Username Search
WorkingFree
Fast availability check of a username across popular sites.
Username search (6)
Maigret
WorkingFree
Sherlock fork that checks thousands of sites and builds a report from profile pages.
NameCheckup
WorkingFree
Checks whether a username is registered across many social sites and domains.
Namechk
WorkingPaid
Shows whether a username is taken on social networks and domains.
WhatsMyName Web
WorkingFree
Checks a username across hundreds of sites using the open WhatsMyName dataset.
Sherlock
May be blockedFree
Open-source command-line tool that hunts a username across social networks.
Launch pages & guides (1)
IntelTechniques Username tools
WorkingFree
Michael Bazzell's username search launch page with links to many lookups.