See where your time goes. A private browsing-time tracker, site blocker, and Pro on-device AI focus coach — all running entirely in your browser.
FocusLens is a browser extension that automatically tracks how much time you spend on each website, sorts sites into categories (productive, social, entertainment, and more), and gives you a daily and weekly focus score. It helps you stay on task with gentle nudges, a friction-based site blocker, and, in Pro, a private AI-generated weekly summary of your patterns.
See exactly where your time goes, per site and per category — no manual timers.
Block distracting sites with a deliberate pause-and-reason screen instead of a hard wall.
A personalized weekly summary generated locally with Chrome's built-in AI — your data never leaves your device.
Spot your drift times and top distractors, and build streaks of focused days.
Time tracking, focus score, streaks, site blocking, nudges, and basic insights.
Everything in Free, plus the on-device AI weekly report, custom categories, and deep analytics — an hourly focus heatmap and extended 90-day trends.
Subscriptions are billed in US dollars through ExtensionPay and Stripe, and renew automatically until cancelled. You can cancel anytime — see our Refund & Cancellation Policy.
Questions, support, refunds, or anything else — email us and we'll get back to you, typically within 2 business days:
Email: runningtreesunlimited@gmail.com
FocusLens is operated by David Deng, based in Canada.