Alternatives to CatBlock for all platforms with any license

uBlock Origin

Popular and efficient blocker for Chromium, Chrome, Edge, Firefox (desktop and Android), Opera, Safari, Thunderbird. Fast and lean.

Free Open Source Mac Windows Linux Android Microsoft Edge ... Vivaldi Browser Chrome Safari Pale Moon Opera Chromium Firefox
Lightweight Block ads 3rd-party filters Block ads ... Google Chrome Extensions Configurable Custom filters Customizable Element blocker Firefox Extensions Privacy focused Security focused Website whitelisting Add a feature

1204 Like
Adblock Plus

Adblock Plus is a free extension that allows you to - among other things - block annoying ads, disable tracking and block domains known to spread malware. Available...

Free Open Source Mac Windows Linux iPhone Chrome OS ... BSD iPad Microsoft Edge Internet Explorer Vivaldi Browser Chrome Safari Yandex.Browser Opera Firefox
Block ads Ad-free Google Chrome Extensions Element blocker ... Firefox Extensions Google Drive integration Internet Explorer extension Microsoft Edge extension No Tracking Opera extension Safari extension Uninstall tracking Add a feature

1726 Like
AdBlock

Your favorite feature in Mozilla Firefox finally comes to Google Chrome...

Free Open Source Mac Windows Linux iPhone BSD ... Chrome Safari Opera
Block ads Ad-free Google Chrome Extensions Microsoft Edge extension ... Opera extension Safari extension Add a feature

293 Like
uBlock

Enjoy a faster, cleaner web. uBlock enhances your browsing experience, efficiently blocking any clutter and overhead disturbing your experience. Built for...
- Discontinued The project seems to be no longer developed. Last version, v0.9.5.2, released in June 2015, can be still downloaded from the official website.
Free Open Source Mac Windows Linux Android Chrome OS ... Chrome Safari Opera Chromium Firefox
Block ads Built-in Ad-blocker Google Chrome Extensions Firefox Extensions ... Lightweight Opera extension Safari extension Unattended installation Add a feature

185 Like
AdAway

An ad blocker that uses the hosts file. The hosts file contains a list of mappings between hostnames and IP addresses. When an app requests an ad, that request is...

Free Open Source Android
Block ads Root required Add a feature

90 Like
AdGuard

AdGuard is an unique internet filter that removes ads, ad-trackers and blocks websites with viruses & malware.

Freemium $ $ $ Open Source Mac Windows Android iPhone Chrome OS ... Android Tablet iPad Vivaldi Browser Chrome Safari Yandex.Browser Opera Firefox
Block ads Built-in Ad-blocker Pop up blocker Add a feature

107 Like
Blokada

The best ad blocker for Android that works for all apps and does not require root. Free and open source. Blokada efficiently blocks ads, tracking and malware. It saves...

Free Open Source Android Android Tablet
Block ads Custom DNS Switch DNS servers Lightweight ... No Root Required Non-root system-wide adblocker Add a feature

44 Like
Nano Defender

An anti-adblock defuser for Nano Adblocker and uBlock Origin This extension is designed for Nano Adblocker and uBlock Origin and does not work with other adblockers.

Free Open Source Mac Windows Linux Chrome uBlock Origin ... Nano Adblocker Chromium Firefox
Block ads Add a feature

9 Like
Nano Adblocker

NanoCore - Just another adblocker Based on uBlock Origin: https://github.com/gorhill/uBlock

Free Open Source Mac Windows Linux Chrome OS Microsoft Edge ... Chrome Chromium Firefox
Block ads Add a feature

9 Like
Hosts by Steven Black

Extending and consolidating hosts files from several well-curated sources like adaway.org, mvps.org, malwaredomainlist.com, someonewhocares.org, and potentially others....

Free Open Source Mac Windows Linux Web Android ... Android Tablet
Block ads Built-in VPN Parental Control Privacy focused ... Root required Add a feature

6 Like
NextDNS

Block ads, trackers and malicious websites on all your devices. Get in-depth analytics about your Internet traffic. Protect your privacy and bypass censorship. Shield...

Free Mac Windows Linux Android iPhone ... Chrome OS iPad UC Browser Vivaldi Browser Chrome Safari Yandex.Browser Software as a Service (SaaS) Opera Firefox
Block ads Parental Control Real-time analytics Add a feature

6 Like
ZenMate Web Firewall

ZenMate Web Firewall is a security solution that blocks malware, trackers and security threats, plus free Ad Blocker against Malvertising!.

Free Open Source Mac Windows Linux Chrome
Block ads Google Chrome Extensions Add a feature

11 Like
AdBlocker Ultimate

AdBlocker Ultimate is a cross-browser ad-blocker. FEATURES - Completely free - Block ALL ads - no whitelisted ads/websites - Block tracking and malware domains

Free Open Source Mac Windows Microsoft Edge Chrome Safari ... Yandex.Browser Opera Firefox
Block ads Ad-free Add a feature

9 Like
StopAd

StopAd is an ultimate tool blocking ads on all major browsers, apps, and social media, like Facebook and Youtube. It operates on Windows, Mac, Android and iOS. .

Commercial $ $ $ Mac Windows Android iPhone Android Tablet ... iPad
Block ads Safari extension Add a feature

9 Like
Wipr

A Cleaner Web Wipr blocks all ads and trackers in Safari and apps that use Safari to display web pages, so you can focus on the content that matters to you. Time...

Commercial $ $ $ Mac iPhone iPad Safari
Block ads Content blocker Safari extension Tracker blocker ... Unlimited private repos Add a feature

6 Like