ClassLock is a lockdown browser for online classes and focused study. One double-click puts your student in a kiosked window with the meeting open, distracting apps killed, and the web limited to what you allow — or runs a timed quiet-study session for solo work.
One double-click. No accounts. No school IT. Just focus.
You see the dots. You know they're not there. Here's what the average student does during a 45-minute online class:
Tab over to YouTube, Discord, or a group chat the moment camera goes off.
Paste the homework prompt into ChatGPT in another window.
Screen-share answers via TeamViewer or AnyDesk with a friend.
Open OBS or the Snipping Tool to record your slides and quiz.
Every distraction surface, closed at once. No browser extensions to install, no admin tools to learn.
Google Meet, Zoom, Microsoft Teams, Cisco Webex, and Jitsi — paste the link, ClassLock detects the platform and pre-allows just the domains it needs.
Only the meeting platform and the sites you pick load. Everything else is silently blocked. One-click presets for Khan Academy, Wikipedia, Docs, Desmos.
Students can launch a solo focus session — pick a topic, set a duration, optionally lock yourself in with a commitment password. Same lockdown, no meeting required.
Discord, ChatGPT, OBS, TeamViewer, AnyDesk, Snipping Tool, Telegram — terminated every few seconds during class. Add your own.
Cmd-Tab, Alt-Tab, Spotlight, Mission Control, Force Quit, F11. All intercepted at the OS level by a native helper.
Screen recordings and screenshots come out black. Quiz questions stay in class.
A notes panel slides out inside the lockdown window. Autosaves to disk, exports as text. No need to leave to take notes.
Every focus loss, blocked site, killed app, and password attempt is logged. Save as HTML or PDF at the end of class.
Same app, different roles. Here's exactly what each side gets out of ClassLock.
For everyone in the call
For anyone running a class
Peace of mind while class is in session
The meeting and the sites you allow keep working perfectly. Everything else goes quiet.
No school IT setup. No browser extension. Works on every student's own machine.
Buy on the website, get a key by email. Install ClassLock, paste the key once.
Drop in your Meet/Zoom link, pick an end time, set an unlock password. Click Export.
Send the .classlock file or the classlock:// link. Students install the free app, double-click, and they're locked in until class ends.
No per-seat fees. No student accounts. No school agreement.
For anyone joining a class or studying solo
For anyone running a class
Complete the form below — we'll email you the app shortly.
Check your inbox — we'll email the download link shortly.
No accounts, no sign-ups. The student app just opens whatever .classlock file you send. Nothing to manage, nothing to forget a password to.
Yes. The same lockdown applies whether it's a lecture, a quiz, or a self-paced study session. For high-stakes exams, combine ClassLock with your existing proctoring tool.
ClassLock currently runs on macOS and Windows. ChromeOS and iPad support is on the roadmap — until then, a school-managed lockdown via MDM is the only real option there.
No — the window is fullscreen kiosk, always-on-top, with closing disabled. Cmd-Q, Alt-F4, Force Quit, and Activity Monitor shortcuts are blocked at the OS level. To exit, the student presses Esc three times and enters the unlock password (or waits for class to end).
Google Meet, Zoom, Microsoft Teams, Cisco Webex, and Jitsi. Paste any meeting link or ID and ClassLock figures out the platform and the domains it needs. The lockdown itself is platform-agnostic — anything that opens in a webview will work.
All of it works normally — the meeting webview gets full camera, mic, and screen-share permissions on every supported platform. The lockdown is about what else the student can do, not breaking the meeting.
Yes. The free student app has a Quiet Study mode — pick a topic, set a duration, and you're locked into a focused session with the notes panel available. Add a commitment password if you want to make it harder to bail out early.
Parents don't need to run anything. The free student app has a Quiet Study mode — your child picks a topic, sets a duration, and locks themselves in with the notes panel available. Add a commitment password if they want to make it harder to bail out early.
No. Everything is local. Tamper logs sit on the student's machine; only the teacher who saved the .classlock file ever sees a report, and only if they ask the student for it.
Most lockdown tools are built around proctored exams with a learning-management system behind them. ClassLock is built for everyday live classes and solo study — share a .classlock file or start a quiet study session, no LMS integration required.