1. You set the rules
Choose how long you want to focus and list the sites that always pull you off task (YouTube, TikTok, Twitter, Reddit, etc.).
Built for students who procrastinate
Turn "I'll start later" into 50 minutes of real focus.
Focus Lock is a Chrome extension that blocks your worst distractions, tracks your productivity, and uses an AI focus coach to keep you on task until the timer ends.
- Lock in a session – pick your focus time and hit start.
- Block distraction sites – YouTube, TikTok, socials & more.
- AI on your shoulder – watches for drift and scores each session.
Focus mode: ON
34:21 remaining
Today's goal
Finish problem set 3 for calculus
Focus score
89
Time on task
42 min
Blocked distractions
7
How Focus Lock keeps you honest
Three systems working together so you actually stay with the assignment.
2. Focus Lock guards the door
Once the timer starts, distraction sites are blocked on every tab. Try to open them and you'll see a gentle reminder screen nudging you back to work.
3. AI watches your session
During focus mode, Focus Lock tracks how you spend your time and takes periodic screenshots so an on-device AI model can score each session and show you if you actually did the work.
Why Focus Lock works when to-do lists don't
Most "productivity tools" add more planning work. Focus Lock goes straight at the real problem: the handful of sites and tabs that steal your attention the moment studying gets uncomfortable.
47%
of students say YouTube or TikTok is their #1 study distraction.
20–50 min
average time to get back into deep focus after a distraction.
1
tool that both blocks, tracks, and coaches you: Focus Lock.
Simple pricing. Serious leverage.
No confusing tiers. One plan that covers everything you need to focus.
Focus Lock Premium
$10 one-time
Pay once, own it forever. No subscriptions, no renewals.
- Unlimited focus sessions with custom timers.
- Smart blocking for any sites you choose.
- AI focus coach with session scores and feedback.
- Local screenshots so your work stays on your device.
- Focus trends to see if you're improving week to week.
If Focus Lock doesn't help you finish more real work in 14 days, you don't pay.
Questions students usually ask
If you're worried about privacy or cheating your own system, read this.
What exactly does Focus Lock block?
You decide. By default, it includes the usual suspects (YouTube, TikTok, Instagram, Reddit, Netflix, etc.). You can add or remove any site in the settings with a single line.
How does the AI "watch" my work?
During a focus session, Focus Lock tracks time spent on your active study tab, how often you try to open blocked sites, and takes low-resolution screenshots every few seconds. These stay on your device and feed a simple model that scores how focused the session actually was.
Is my screen data private?
In this version, screenshots and focus metrics are stored locally in your browser. Future versions will be opt-in only if cloud backup or advanced analysis is added, and will include a clear, student-friendly privacy policy.
Will it work with my existing study tools?
Yes. Focus Lock runs in Chrome, so it works alongside Notion, Google Docs, online textbooks, coding sandboxes, LMS portals, and more. It only cares about the sites you tell it to block.