NextDNS is described as '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' and is a very popular Ad Blocker in the security & privacy category. There are more than 100 alternatives to NextDNS for a variety of platforms, including Mac, iPhone, iPad, Windows and Web-based apps. The best NextDNS alternative is Pi-hole, which is both free and Open Source. Other great apps like NextDNS are AdGuard, Portmaster, Adblock Plus and SponsorBlock.
Blokada is the popular ad blocker and privacy app for Android and iOS. It's being supported and actively developed by the amazing open source community.
AdGuard Home is a network-wide software for blocking ads & tracking. After you set it up, it'll cover ALL your home devices, and you don't need any client-side software for that.
Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc.
The repository has been archived and the development has been stopped. https://github.com/uBlockOrigin/uMatrix-issues/issues/291
uMatrix is Not a DNS service
InviZible Pro uses DNSCrypt Protocol, Tor and i2pd (I2P Daemon) (PurpleI2P) to achieve maximum security, privacy and comfortable use of the Internet.
Blocks intrusive ads and trackers to boost browser speed and privacy, supports customizable ad filtering on Chrome, Firefox, Edge, and Safari, offers Acceptable Ads whitelisting, works in 30+ languages, with tens of millions of users worldwide.
NextDNS operates at the system level to filter requests for privacy, whereas AdBlock is a browser extension making it very limited. I don't really see this as an alternative.
Cisco Umbrella (formerly OpenDNS) provides the first line of defense against threats on the internet wherever users go.
Zen is an open-source system-wide ad-blocker and privacy guard for Windows, MacOS, and Linux. It works by setting up a proxy that intercepts HTTP requests from all applications, and blocks those serving ads, tracking scripts that monitor your behavior, malware, and other...
Stop trackers in every app and browser before they load- Encrypted DNS keeps your activity private from your ISP Free to start.
AdNauseam is a browser extension designed to obfuscate browsing data and protect users from surveillance and tracking by advertising networks.
DNS66 blocks advertisements on Android by intercepting DNS requests using Android's VPN layer and blocking requests for blacklisted hosts.
CleanBrowsing is a family and kid-safe way to browse the web without surprises. It Automatically blocks adult content, while still allowing Google, Youtube, Bing and the core of the web to load safely. Easy setup in 5 minutes with nothing to install.
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NextDNS is a cloud-based DNS blocker, while Blokada is local and works by establishing a vpn connection.
Blokada 6 is now a cloud-based alternative, but Blokada 5 is sitll maintained and it works wonderfully.