FocusLock

Minimal focus timer and site blocker.

Focus Lock is a calm, distraction-free focus workspace engineered for deep work. By pairing dynamic Pomodoro sprint schedules with native, network-level site blocking, Focus Lock eliminates impulse browsing, protects momentum, and keeps you locked into your priorities. Most website blockers require broad access to your complete browsing history or lock simple timers behind monthly paywalls. Focus Lock is built with a zero-compromise approach to user privacy: zero host permissions, zero tracking, and 100% offline execution. Key Features Dynamic Interval Engine: Enter your target work duration (e.g., 45, 60, or 90 minutes), and Focus Lock automatically calculates an optimal cycle of deep-work sprints and scaled restorative breaks. Native Network-Level Blocking: Uses browser declarative network rules to terminate requests to distracting websites before the page layout or scripts even load. Resilient Media & CDN Interception: Drops hidden background content delivery networks (CDNs), media streams, and service-worker caches on complex, dynamic platforms like YouTube. Open Tab Synchronization: Matching websites already open across your browser windows automatically refresh the second a sprint begins, cutting off existing distractions instantly. Stackable Distraction Bundles: Toggle entire categories on or off with a single click—Social, Video, News, Shopping, and Games—or save your current blocked list as a custom preset with complete deletion control. Dynamic Toolbar Icon Indicator: The extension icon automatically flips to an active visual state whenever a timer is running, giving you a passive focus cue right in your browser toolbar. Liquid Glass Interface: A clean, tactile frosted glass UI with seamless dark and light modes, soft lighting highlights, and a customized neutral scrollbar. Daily Minute Counter: Tracks completed sprint intervals locally, recording your total locked-in minutes for the day. Plain-Text Config Portability: Export and import your exact blocklists, presets, and settings via clipboard copy-paste to sync across multiple machines without creating an account. Privacy & Permissions No Host Permissions Required: Does not require <all_urls> or invasive history reading. 100% Local & Offline: Operates entirely inside your browser runtime using local storage and native alarm APIs. Zero Telemetry: No analytics scripts, no external server pings, and no user tracking. Zero Resource Drain: Leaves a near-zero memory footprint when idle. How It Works Enter your planned focus duration in minutes. Choose a preset distraction bundle or add specific domains to your blocklist. Hit Start Session to lock in. Focus Lock handles the timers, notifications, and network restrictions automatically.