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 iPhone, Mac, Web-based, iPad and Windows apps. The best NextDNS alternative is Pi-hole, which is both free and Open Source. Other great apps like NextDNS are Portmaster, AdGuard, Adblock Plus and SponsorBlock.
NextDNS alternatives are mainly Ad Blockers, but if you're looking for
DNS Resolvers or Privacy Tools you can filter on that. You can also filter by region, for example
EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to NextDNS.