Lockby

Browser extension locking the browser to only whitelisted sites during focus sessions.

Browser extensionfreemiumglobal

Lockby locks the browser to only allowed domains during a focus session — non-whitelisted tabs are killed before they load — built for ADHD brains and chronic tab-openers, with a free tier and no account needed.

Website

Full match profile

Behind the summary, Matchbox keeps a richer profile of Lockby - 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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