DNSCrypt - Tool
A protocol for securing communications between a client and a DNS resolver. The DNSCrypt protocol uses high-speed high-security elliptic-curve cryptography and is very similar to DNSCurve, but focuses on securing communications between a client and its first-level resolver.
OS: Windows, Mac, Linux, iOS with Jailbreak.
OpenNIC - Service
OpenNIC is an alternate network information center/alternative DNS root which lists itself as an alternative to ICANN and its registries. Like all alternative root DNS systems, OpenNIC-hosted domains are unreachable to the vast majority of the Internet. Only specific configuration in one’s DNS resolver makes these reachable, and very few Internet service providers have this configuration.