Free Network Tools

Updated 20 Sep 2026

Free tools for home networks. They run in your browser and need no sign-up.

• Subnet CalculatorNetwork, broadcast, host range, mask and wildcard for any IPv4 address and CIDR prefix.
• Wi-Fi Password GeneratorStrong, easy-to-type Wi-Fi passwords made in your browser. Nothing is sent to us.
• Router Password LookupSearch default usernames and passwords by brand, model, ISP or IP.
• Router IP ListFind the login address for your router or ISP.