Network & Web
IP, DNS, HTTP, and network utilities
27 tools available
CIDR Parser
Parse and analyze CIDR notation
CIDRs Merger
Merge and exclude CIDRs
IP/CIDR Normalizer
Normalize IP addresses and CIDRs
IP Range to CIDR
Convert IP ranges to CIDR notation
DNS Lookup
Lookup DNS records
My IP Address
Show your public IP address
IP Info Lookup
Get information about an IP address
Reverse IP Lookup
Find domains on an IP
IPv6 to MAC
Convert IPv6 to MAC address
MAC to IPv6
Convert MAC to IPv6 link-local
Network Time
Current accurate network time
Port Number Lookup
Look up well-known port numbers
HTTP Status Codes
HTTP status code reference
MIME Type Lookup
Look up MIME types
Punycode Converter
Convert Unicode to Punycode and back
URL Encoder/Decoder
Encode and decode URL components
URL Parser
Parse and build URLs
Basic Auth Generator
Generate Basic Authentication headers
Basic Auth Decoder
Decode Basic Authentication headers
JWT Signer
Create and sign JWTs
JWT Decoder
Decode and verify JWTs
MAC Address Lookup
Look up MAC address vendor
HTTP Header Parser
Parse and analyze HTTP headers
SSL Certificate Decoder
Decode SSL/TLS certificates
Subnet Calculator
Calculate subnet details from CIDR notation
cURL to Code
Convert cURL commands to JavaScript or Python
CSP Evaluator
Evaluate Content Security Policy headers