Website blocking

The website blocker that blocks every browser at once

Block any site by URL, category or keyword. Appcognito's on-device firewall stops it loading in Chrome, every other browser and the in-app browsers inside other apps, with nothing about your browsing leaving your phone.

Download free See how it works

Free forever plan
No account
No ads, no tracking

Every browser Chrome, Firefox, in-app browsers and more
On-device A real firewall, nothing routed to a server
Apps + sites Block websites and the apps behind them

More than a website blocker

Most site blockers only touch one browser, or only block apps. Appcognito blocks websites and apps together, on-device, across everything.

Block any site, in any browser

Add a domain or paste a URL and it is blocked at the network level, so the same block applies in Chrome, Firefox, Brave, Samsung Internet and in-app browsers at the same time.

By URL
By domain
By category

Block by keyword too

For pages a list has never seen, keyword blocking reads the visible on-screen text in real time and steps in the moment a blocked topic appears, even on a brand new site.

New sites
Search results
In-app content

Four ways to block a website

Block on impulse, on a timer, on a schedule, or in bundles. Pick what fits the moment.

Quick Block

Block a website in one tap when you need to focus right now, then flip it back just as fast.

Focus sessions

Lock your chosen sites away for a set time. With an optional code, you cannot reopen them early.

Rules

Block sites automatically by time, Wi-Fi, charging, place and 12 more triggers, so the rule starts without you lifting a finger.

Block lists

Put a whole set of sites, apps and keywords in one block list and switch them on together.

How to block a website on Android.

Three steps, no account, and nothing routed through our servers.

Step 1

Add the site to your block list.

Type any domain, paste a URL, or block a whole category. You can add as many sites as you want, and save them in a block list to switch on together.

Step 2

The on-device firewall takes over.

Appcognito runs a private filter on your phone and checks every request against your block list, across every browser and app.

Step 3

Blocked sites simply do not load.

Matching requests are dropped before the page opens. Everything else loads as normal, and nothing about your browsing leaves your device.

9:41●●●

Blocked by Appcognito

InstagramFocus mode active

24:13 until your session ends

Locked · you chose to stay focused

Website blocking
FAQ.

Read the user guide

How do I block a website on Android?

Install Appcognito, add the site, domain or category to your block list, and its on-device firewall stops that site loading across every browser and app, not just one. There is no account and nothing leaves your phone.

Does it block websites in Chrome and other browsers?

Yes. Because Appcognito blocks at the network level on your device, the block applies everywhere at once, including Chrome, Firefox, Samsung Internet, Brave and the in-app browsers inside other apps.

Can I block a whole category of sites, not just one URL?

Yes. You can block individual domains, and you can also block by keyword so pages about a topic are blocked even on sites you did not list. The built-in Adult Content block list stops over 750,000 adult sites in one tap, and the Gambling list covers another 290,000.

Will it block apps as well as websites?

Yes. The same firewall blocks distracting apps and websites together, so you can shut out a social network's app and its site at the same time. Most blockers only do one or the other.

Is the website blocker free?

Yes. Blocking apps and websites works on the free plan with no time limit, and there is a 7 day Pro trial that needs no card. Free runs one block list and one rule at a time. Pro lifts that, and adds Strict mode, accountability locks and uninstall protection.

Can I stop myself unblocking a site in a weak moment?

Yes. Start a Focus session with a lock code, or with Pro add a parental or partner accountability lock and reboot-proof uninstall protection, so a site you blocked stays blocked.