Domainr!

Fast, free domain search. Theres a whole world of domains out there thousands at the top-level and even more beyond. Features:- Search all domains, including the new top-level and country domains- Internationalized domain name (IDN) support- Registrars for all domains- Make an offer for domains that are parked or for sale- Pre-register new top-level domains- Share domains with iOS-native sharing- Buy from the Namecheap app, if its installed