It cuts off work in progress
A build, a render, a sync, a long download — whatever is running is killed mid-way, with no chance to finish or clean up.
For the machine that can't just be turned off
Your machine has to stay on. You don't.
A server, a database, a backup, a long download, a remote session — something on that machine has to keep running, so scheduling a shutdown isn't an option. That doesn't mean you have to stay up with it.
It's 3 a.m. Your services are fine. You are not.
Why not just schedule a shutdown?
Because on a machine that is actually doing something, an automatic shutdown is destructive.
It breaks what was scheduled for later
Backups, cron jobs, overnight batches. Shut the machine down and they quietly do not run at all.
It disconnects whoever is connected
SSH sessions, databases, web services — anything a teammate or another machine is depending on.
So the people who need those services never run shutdown timers at all — and the browser stays open until 3 a.m. instead.
This takes down only the part that is actually yours. The computer keeps running, your services keep running, your downloads keep going.
Two ways to stop yourself
Both of them are decisions you make once, in the daytime, that still apply at 1 a.m.
Scheduled auto-close
Pick a time — 23:00, say. A few minutes before, you get a notification. At the time, the browser closes itself. An optional grace period gives you one last window if you still need to save something.
Lock screen
While a lock is active, every page you open is replaced by the extension's own page, so there is nothing left to browse. Three styles: plain black, a minimal clock, or a message you write yourself.
On a schedule
23:00 to 07:00, for example. Crossing midnight is handled correctly.
When you go quiet
After N minutes of inactivity, the lock can come up on its own.
When you ask for it
One click on the toolbar icon. Useful when “just one more tab” starts.
Three lock screens
Rendered by the real extension, at 01:47 in the morning — the hour this is built for.
Solid black
A dark screen with a barely-there clock. The least stimulation possible.
Minimal clock
A large clock over a slow aurora glow. Tells you how long you have left.
Your own message
Whatever you want to be told at 1 a.m. Future you writes it.
It all fits in two tabs
No wizards, no dashboards. Nothing happens until you switch it on.
Auto close
Set the time, the grace period, and whether you want a warning first.
Lock screen
Style, fullscreen, schedule, idle timer, and an optional PIN to unlock early.
It can't phone home, because there's nothing to phone
There is no backend. No network requests are made at all.
- No account, no sign-up, no server. There is no backend to talk to.
- No analytics, no tracking, no telemetry. Nothing is measured or reported.
- No content scripts. It never reads, changes, or injects anything into the pages you visit.
- No history, bookmarks, clipboard, cookies, or form data. It doesn't ask for them.
- Your settings stay in your browser profile. They are never uploaded or shared.
It's a soft lock, on purpose
This is a tool for people who want help keeping a promise to themselves — not a way to take over someone else's computer.
So you should know upfront
- You can always reach your browser settings and remove the extension. It never blocks, hides, or interferes with its own uninstall.
- The optional PIN is stored locally in plain text. It's friction against a late-night impulse, not a security boundary.
- Every feature is off until you turn it on, and you can switch any of them off again.
How to install
- Add it from the Chrome Web StoreThen pin it to your toolbar so you can reach it in one click.
- Set a bedtimePick a time for the auto-close, and turn on the lock screen if you want the harder version.
- Close the tab and forget about itThe decision is already made. That's the whole point.
Add to Chrome
Also available as an unpacked extension from the zip.