Sites and apps similar to NameOyster include Instant Username Search, which is free and open source. Other options are Namechk, KnowEm, NameCheckup and 360username. In total there are five Social Networks like NameOyster for self-hosting and Windows.
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.
Search over 550 popular social networks, over 150 domain names, and the entire USPTO Trademark Database to instantly secure your brand on the internet.
United States
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.
360username helps you find, check, and secure the same username across the internet. You can instantly search your preferred name across more than 90 platforms to see where it’s available.
