Focus Guard

Set a goal and a timer. Focus Guard checks each page against your goal with on-device AI, and blocks distractions.

Sit down to work on something important, and twenty minutes later you're scrolling a feed. Focus Guard catches that. Tell it what you're working on and how long you want to focus. During the session it looks at the page you're on and asks an AI model whether it fits your goal. If you stay on something unrelated, it replaces the page with a reminder of your goal and the time left. It judges the page itself, not just the website: a YouTube lecture for your course is fine, a YouTube music video isn't. GETTING STARTED 1. Install Focus Guard and pin it to your toolbar. 2. Click the icon, type your goal (e.g. "Write the literature review for my thesis"), set a duration, and press Start. That's it. If Chrome doesn't have its AI model yet, the first Start sets it up in the background (a one-time download that takes a few minutes); browsing is allowed until it's ready. DURING A SESSION - Every few seconds, Focus Guard checks the active tab against your goal. - On-task pages: nothing happens. - Off-task for about 15 seconds in a row: the page is replaced with an "Off Track" reminder showing your goal, the time left, and the AI's one-line reason. - "Resume" takes you back if you really need that page. - The session ends automatically when the timer runs out, or press Stop at any time. FREE AND PRIVATE BY DEFAULT Focus Guard uses Gemini Nano, the AI model built into Chrome, so pages are checked on your own computer. Screenshots never leave your device. There is no account, no API key, no subscription and no server. On-device AI needs desktop Chrome 138+ on Windows, macOS or Linux, with 16 GB of RAM (or a GPU with more than 4 GB of memory) and 22 GB of free disk space. On other computers you can instead connect any OpenAI-compatible vision model (such as OpenAI or OpenRouter) with your own API key.