NameOyster is described as 'The global brands of today all seem to have catchy names yet for bootstrapped startups; these short names are expensive to invest in and hard to come by. But a brandable name is not necessarily a short name. Brandables are creative and sticky, but most of all, unique'. There are six alternatives to NameOyster, not only websites but also apps for Self-Hosted solutions, SaaS and Windows. The best alternative is Instant Username Search, which is both free and Open Source. Other great sites and apps similar to NameOyster are Namechk (Free), KnowEm (Free Personal), HandleDroid (Paid) and NameCheckup (Free).
Instant Username Search is a free and open-source web app to check if a username is available on services like Facebook, Instagram, Reddit, GitHub and much more. It's available online or as a self-hosted app.
Use Namechk to see if your desired username or vanity url is still available at dozens of popular Social Networking and Social Bookmarking websites. Promote your brand consistently by registering a username that is still available on the majority of the most popular sites.
NameCheckup is a search tool for available usernames and domains across numerous social networks and popular websites with millions of users. Find available social media handler for your startup, personal brand, business.
Social Duce is the cheapest Knowem Alternative service. We manually create profiles for your brand in the most popular websites. In addition to your brand name, Social Duce also adds the following information to the newly created profiles where ever possible.