A collection of network engineering tools — all run client-side in your browser, nothing is sent to a server.
Network
What Is My IP?
See your IPv4 and IPv6 addresses, ISP, ASN, location, and reverse DNS record.
Threat IntelIP / Domain Reputation
Look up any IP or domain for threat intel, abuse reports, WHOIS, and BGP info.
Cisco IOSType 7 Password Decrypter
Decrypt Cisco IOS Type 7 (reversible XOR) password strings from your running config.
Juniper JunOSJunOS $9$ Password Decrypter
Decrypt Juniper JunOS $9$ encrypted passwords from your JunOS configuration.
IPv4IPv4 Visual Subnet Calculator
Interactive subnet calculator with divide/join — split any network into subnets visually.
IPv6IPv6 Subnet Calculator
Calculate IPv6 network address, range, prefix, and total addresses from any prefix length.