Username & Social Media Tracking
WhatsMyName
Enumerates a username's presence across sites.
WhatsMyName is an open-source tool that enumerates a username's presence across various websites. It helps researchers identify where specific usernames are registered or active online. This assists in mapping digital footprints and understanding potential exposure of personal identifiers across different platforms.
Dual-use tool. This is capable of legitimate research (journalism, security, due diligence) and of harassment or stalking. Listing it here is not an endorsement of either use.
Official site: https://whatsmyname.app
Source: https://github.com/WebBreacher/WhatsMyName
Last verified 2026-08-30.