Cyber-Guard Tools
Free tools for DNS, IP & Security
A collection of free, fast online tools from the Cyber-Guard team. The site keeps growing, tool by tool.
Network & IP
Network & IP
Tools for IP addresses, subnet calculations, and network information.
What Is My IP AddressLive →
IP Subnet CalculatorSoon
IP to DecimalSoon
IPv4 to IPv6Soon
IPv6 to IPv4Soon
IPv6 CompressSoon
IPv6 ExpandSoon
IPv6 CIDR to RangeSoon
IPv6 Range to CIDRSoon
MAC Address GeneratorSoon
DNS & Domain
DNS & Domain
Live DNS lookups powered by DNS-over-HTTPS.
DNS Lookup (all records)Soon
NS LookupSoon
MX LookupSoon
CNAME LookupSoon
SPF Record CheckerSoon
DMARC CheckerSoon
DNSKEY / DS LookupSoon
Domain to IP LookupSoon
Security
Security
Tools for passwords and format validation.
Random Password GeneratorSoon
Password Strength CheckerSoon
Credit Card Checker (Luhn)Soon
Converters & Generators
Converters & Generators
Text and encoding tools that run entirely in your browser, no server involved.
MD5 & Base64 GeneratorSoon
Binary ↔ Text TranslatorSoon
ROT13 Encoder/DecoderSoon
Morse Code TranslatorSoon
Word CounterSoon
Lorem Ipsum GeneratorSoon
Small Text GeneratorSoon
Invisible Character GeneratorSoon
Runic TranslatorSoon
Developer Tools
Developer Tools
Everyday tools for developers and webmasters.
JSON Viewer, Beautifier & MinifierSoon
Robots.txt GeneratorSoon
HTACCESS Redirect GeneratorSoon
URL Rewrite GeneratorSoon
Multi URL OpenerSoon
Notepad OnlineSoon