socialscan

Accurately checks whether a username or email is taken across many online platforms, fast and in bulk.

DesktopEmergingfreeglobal

A desktop app that checks whether usernames or email addresses are available, taken, or invalid across many online platforms, performing fast bulk queries to avoid visiting sites one-by-one. Intended for people choosing consistent handles and for security researchers doing OSINT username enumeration, it supports self-hosting, is released under the MPL-2.0 license, and claims to reduce false positives and negatives compared with similar checkers.

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Full match profile

Behind the summary, Matchbox keeps a richer profile of socialscan - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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