Harbor Adblock is described as 'Harbor Privacy is a managed DNS filtering service that blocks ads, trackers, and malicious domains network-wide, with no logging of browsing activity. Includes Harbor Kids, a family protection layer that filters adult content, gaming, dating apps, gambling, and dangerous sites' and is a Ad Blocker in the security & privacy category. There are more than 50 alternatives to Harbor Adblock, not only websites but also apps for a variety of platforms, including Android, iPhone, Windows and Linux apps. The best Harbor Adblock alternative is Portmaster, which is both free and Open Source. Other great sites and apps similar to Harbor Adblock are NextDNS, Adblock Plus, AdGuard and SponsorBlock.
Free, open-source privacy suite monitoring all network activity, blocking unwanted connections, using trusted filter lists for ads and malware, enforcing DNS-over-TLS, providing custom app and global rules, and supporting advanced privacy management.
Austria
EU
NextDNS protects you from all kinds of security threats, blocks ads and trackers on websites and in apps and provides a safe and supervised Internet for kids — on all devices and on all networks.
United States
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.
GermanyEU
Ad-blocking solution eliminating intrusive ads and preventing tracking, with malware protection. Filters pop-ups, banners, and more for clean browsing. Works in the background for ad-free surfing, protects data privacy with Spyware filter, and controls ad display in apps.
CyprusEU
SponsorBlock is an open-source crowdsourced browser extension to skip sponsor segments in YouTube videos. Users submit when a sponsor happens from the extension, and the extension automatically skips sponsors it knows about.
Canada
Blocks ads for all connected devices at the DNS layer without client setup. Provides web control, in-app ad and tracker blocking, DHCP and API support, regex filtering, privacy modes, audit logs, and long-term query analytics for network management.
United States
An OpenSnitch-inspired firewall and network monitor + a pi-hole-inspired DNS over HTTPS client with blocklists.
United States
Designed by CloudFlare, this DNS resolver focuses on speed and privacy, ensuring no user data is sold. Mobile apps extend protections with WARP VPN, enhancing browsing security, performance, and offering anti-malware features. Aimed at tech-savvy and general audiences alike.
United States
Quad9 is a free, recursive, anycast DNS platform that provides end users robust security protections, high-performance, and privacy.
Switzerland
Join DNS4EU, an EU initiative providing secure, private, and reliable DNS services for users across Europe.
CzechiaEU
Cloud DNS blocks ads, trackers, and malicious domains for all devices, provides real-time request stats, customizable filtering, parental controls, and a web dashboard. Compatible with routers, enables safer browsing, and ensures a privacy-focused internet experience.
CyprusEU
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 directed to 127.0.0.1 which does nothing.
GermanyEU
