Focora

Focora is a free productivity tracker and unlimited site blocker with no paywall, no site cap, and no subscription. Block as many distracting sites as you like, run a built in Pomodoro timer, and manage tasks in one place. What sets it apart: Focora automatically categorizes the sites you visit, so instead of guessing what to block, you can see exactly where your hours went each week.

It runs as a Chrome extension with a local only mode that keeps data in your browser. Optionally sign in to sync across devices and unlock deeper analytics, including a daily focus timeline, session quality, recovery time after distractions, and an AI you can ask about your week. Free to start, free to actually use.