FocusOne - Block Sites, Filter YouTube Channels, Schedule Focus

FocusOne is a free site blocker and productivity extension for Chrome that lets you block sites, filter YouTube channels, and automatically schedule your focus sessions — all 100% on your device with zero tracking. Block websites that waste your time. Keep the ones that don't. FocusOne is the only website blocker that also lets you filter YouTube by specific channel, remove clickbait thumbnails, and lock itself so you can't cheat during a focus session. If you have ever opened YouTube to watch one tutorial and looked up 40 minutes later watching something completely unrelated, or opened Reddit just to check something quickly and lost an hour in the Popular feed, or started your workday meaning to focus and somehow ended up scrolling Twitter instead — FocusOne was built for exactly that. Not because you are weak. But because those feeds were designed by teams of engineers whose entire job is to keep you there. You are not losing a fair fight. You are losing a rigged one. FocusOne puts engineering on your side. BLOCK ANY WEBSITE — DURING FOCUS OR ALWAYS Add any site to your blocklist and choose how strictly you want it blocked. You can set a site to be blocked only during your scheduled focus sessions, so you can still browse freely outside of work hours. Or you can set it to always blocked, 24 hours a day, 7 days a week, no exceptions. The choice is yours — but once focus mode is active, that choice is locked in. To make setup fast, FocusOne includes ready-made bundles so you can block sites by category in a single click — no need to hunt down individual URLs. Social Media covers the main social feeds, infinite scroll timelines, and status checkers — 10 sites added instantly. Short-Form Video blocks the high-dopamine vertical video feeds designed to trap your attention — 5 sites. News and Media covers breaking news sites, political commentary pages, and doomscrolling outlets — 11 sites. Streaming and Gaming blocks video streaming services, game streams, and gaming portals — 12 sites. Shopping and Deals blocks impulse shopping portals, deal aggregators, and online marketplaces — 9 sites. Forums and Discussion blocks the infinite threads, rabbit holes, and comment drama — 8 more sites. Click once. Block them all. No typing required. Every site you add shows two buttons side by side: During Focus and Always. This is the most important design choice in FocusOne. Most website blockers treat blocking as binary — blocked or not blocked. FocusOne lets you be specific. Block Reddit only when you are working but keep it available in the evening. Block TikTok permanently. Block Instagram on weekdays but not weekends. Your blocklist, your rules. YOUTUBE SHIELDS — KEEP WHAT MATTERS, REMOVE WHAT DOESN'T This is the feature that makes FocusOne different from every other site blocker and website blocker on the Chrome Web Store. Blocking YouTube completely is not always the answer. If you are a developer, a student, a designer, or anyone who uses YouTube for tutorials and learning, blocking the whole site removes the tool you actually need. The real problem is not YouTube — it is what YouTube puts around the video you came to watch. YouTube Shields let you keep the platform working while removing the specific parts built to pull you off-task. You can whitelist specific YouTube channels you actually want to watch. Add the channels that teach you things and matter to your work. Once your allowlist is set, every other channel's content gets hidden — you can still search and find what you need, but the algorithm stops pushing random creators at you. This is YouTube filtered by you, not by an algorithm that benefits from keeping you watching as long as possible. Beyond the channel allowlist, you get individual toggles for each distraction layer: Block YouTube Shorts everywhere they appear — on the shelf, in the tab, and in the player itself. This is one of the most-requested features in any YouTube productivity extension, and FocusOne blocks Shorts completely with a single toggle. Shorts are the fastest-growing source of accidental time loss on YouTube because they autoplay and loop. One toggle removes them from everywhere they show up. Hide the watch page recommendations and sidebar. This is the column of videos on the right side of every YouTube video that exists for one purpose only: to pull you away from the video you chose to watch and onto a video the algorithm chose for you. Remove it. Hide comments. The comments section on YouTube is one of the most effective ways to spend 20 minutes when you meant to spend two. Hide it and the video gets 100% of your attention. Hide the home page feed. The YouTube home page is a fully engineered distraction engine — every tile is algorithmically chosen to be maximally clickable, not maximally useful to you. Hide the feed and you are left with a search bar. Now YouTube is a tool, not a trap. Hide channel feeds and profile pages so browsing a creator's back catalog does not turn into a two-hour session. Hide YouTube community posts — the feed of text and image posts creators publish between videos — which functions like a social media feed inside a video platform. Anti-Clickbait Mode. This is the detail most people notice first when they turn it on. FocusOne converts all YouTube thumbnails to grayscale and applies a blur. The result is that before you click any video, you have to read the title. The title tells you whether the video is actually useful to you. The thumbnail — which is designed to be emotionally provocative and visually irresistible — no longer makes the decision for you. You start clicking based on what you actually want to learn, not based on which thumbnail triggered a reaction. It sounds like a small thing. It changes everything. X / TWITTER SHIELDS — REMOVE THE MACHINE, KEEP THE NETWORK Twitter and X are valuable for following people in your field, seeing what is being discussed, and sharing work. They are also one of the most eff…