Latest, 18 Oct 2026:15 usersMove the mouse over the chart for any month
Ratings count
monthly, 5 months
Latest, 18 Oct 2026:3 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Focus Lock
# FocusLock by Synapse — Stay Focused. Study Smarter.
**Turn online lectures and study sessions into focused, distraction-free learning experiences.**
FocusLock is a Chrome extension developed by **Synapse**, an AI-powered student productivity platform. It helps students stay focused while studying, manage their study time, ask AI-powered questions, and capture important lecture notes without leaving their learning environment.
Whether you're watching a YouTube lecture, revising concepts, or working on assignments, FocusLock brings essential study tools together in one place.
### Key Features
**1. Focus Timer & Distraction Blocking**
Start a focused study session and reduce distractions from unwanted websites and tabs. Track your focus time, manage sessions, and stay on task.
**2. Automatic YouTube Lecture Detection**
When enabled, FocusLock detects supported YouTube videos and synchronizes the focus timer with the lecture's remaining duration. Manage your session with pause, resume, and timer extension controls.
**3. Synapse AI Study Companion**
Have a question while watching a lecture? Open the floating Synapse AI Companion directly on YouTube to ask doubts and receive explanations without leaving the video.
You can type questions or use the microphone for voice input.
**4. Timestamped Smart Notes**
Capture important concepts while watching lectures. FocusLock automatically records the current YouTube video timestamp when you create a note, allowing you to revisit that exact moment later.
Notes can also be created with manually entered timestamps.
**5. FocusLock Activity & Study History**
Connect FocusLock to your Synapse account to save and synchronize your study activity.
On synapsestudy.app, you can use the FocusLock Activity calendar to revisit:
- Previous AI questions and responses
- Saved lecture notes
- Video timestamps linked to the original lectures
**6. Personalized Focus Sessions**
Choose how you want to study, manage your focus sessions, and review your progress using the Synapse FocusLock dashboard.
### How FocusLock Works
1. Install the FocusLock Chrome extension.
2. Start a focus session.
3. Enable automatic lecture detection when studying on YouTube, if desired.
4. Use the floating Synapse icon to ask AI questions or save timestamped notes.
5. Open your Synapse FocusLock dashboard to revisit your saved activity.
### Designed for Students
FocusLock is useful for school students, college students, online learners, and anyone who wants to stay focused during digital study sessions.
Instead of constantly switching between different study tools, FocusLock combines focus tracking, distraction management, AI assistance, and note-taking into one integrated learning experience.
### Privacy & Permissions
FocusLock uses relevant browser tab and video information to support lecture detection, focus tracking, and distraction blocking.
When you use AI assistance or voice input, your requests are processed to provide responses or transcriptions. Study notes and activity can be synchronized with your Synapse account.
Microphone access is used for voice input when you choose to activate it.
### About Synapse
Synapse is a student productivity platform that brings together AI-powered learning tools, focus management, notes, tasks, and study progress tracking.
Website: https://synapsestudy.app
**Focus on learning. Let Synapse help you stay on track.**