A commitment device for quitting porn
Stay in control. Stay anchored.
Blocks adult sites and holds your settings in place for a period you choose — so a decision you made carefully stays made.
Anchor for Windows · protects the whole computer
Windows 10 & 11 · Anchor Pro included
Covers every browser at once, and can't be uninstalled while a
commitment is running. What's the difference?
or add the free extension to your browser
Brave, Vivaldi or Arc? Use the Chrome button.
The commitment lock
Willpower gets you started. The lock keeps you there.
- Choose your period — a week, a month, or longer.
- Anchor holds it. While the lock is active, blocking and safe search can't be switched off, and your block list can't be edited. In the Windows app, Anchor can't be uninstalled at all until the period ends — the extension installs itself into every browser and has no Remove button. The browser extension alone can't stop an uninstall outright; it makes one loud instead, opening a pre-written note to your accountability contact if you chose one.
- Ride out the waves. A blocked moment offers your own note to yourself and a 30-second breathing reset instead of the content.
- Finish, then decide again. When the period ends, you choose with a clear head whether to extend.
Out now — Anchor for Windows
The exit you were counting on, closed.
The browser extension protects the browser it's installed in. The Windows app protects the computer — every browser, including the one you'd download at 1am to get around it.
Browser extension
Free · Chrome, Edge, Brave, Vivaldi, Firefox
- Blocks 25,000+ sites in that browser
- Forces safe search
- On-device AI image filtering Pro
- Page-content scanning
- Another browser isn't covered
- Can be removed from the extensions page
Windows app Out now
£4.99 a month or £39.99 once · Windows 10 & 11
- Everything in the extension, and it installs the extension for you
- Anchor Pro included — the AI image filter comes with it
- Every browser and every app, including ones installed later
- Can't be uninstalled while committed
- Extension can't be removed — no Remove button
- Encrypted DNS switched off, so lookups can't route around it
- Survives a reboot, a new profile, and a new browser
- Parental lock — a password or PIN, so settings and removal stay yours
Windows only for now. macOS is next — the extension works on Mac in the meantime, and everything you set carries over.
Not even an administrator can remove it
Anchor runs as a protected Windows service. While you're committed it can't be uninstalled from Windows Settings, deleted in File Explorer, or switched off in Services — even with administrator rights. Close it in Task Manager or remove a part of it, and it rebuilds itself within seconds. Restarting doesn't help either: it starts before you can get to it, in Safe Mode too. The moment your commitment ends it comes off cleanly, and your DNS settings and browser policies go back exactly as they were.
What it does
The exits, closed one by one.
Site blocking
Over 25,000 adult sites blocked out of the box, plus any you add. Proxy and bypass sites are covered too.
On-device AI image filter Pro
A local model blurs explicit and suggestive images as pages load, across the sites you browse. No image ever leaves your machine. No filter is perfect — some things slip through, some harmless images get blurred. Part of Anchor Pro.
Forced safe search
Google, Bing and DuckDuckGo run in strict mode, and YouTube runs in Restricted Mode, whether or not you're signed in.
Search-term guard
Explicit search terms are stopped at the query itself, not just at the results, across the major search engines.
Your reasons, at the door
Write a note to your future self. It's the first thing you see on every blocked page.
Progress you can feel
Streaks, urges surfed, and an estimate of the time you've reclaimed.
Parental controls
Setting it up for someone else.
Anchor is built for the person using it — but the lock works either way.
Set a password or a 4 to 6 digit PIN and Anchor asks for it before the window opens. Changing any setting needs it. So does removing Anchor, including from Windows’ own Apps list. After three wrong tries it starts making you wait.
Blocking keeps running the whole time. The lock is on the window, not the filter, so a locked Anchor is still doing its job.
What it isn’t
As parental controls go, this one is narrow. There is no screen time, no app limits and no activity reports, and nothing is sent to you about what anyone did. Anchor blocks adult content and holds its own settings in place. That is the whole scope — if you need monitoring, this is not the tool.
Privacy
Built to know nothing about you.
No account, no analytics, no servers. Blocking decisions and AI image checks run entirely on your device, and your settings never leave it. Read the full privacy policy.