Network Tools
Look up IPs, DNS records, and header details
All Tools in This Category
IP Address Analyzer & CIDR Calculator
Analyze IP addresses with CIDR calculator, subnet mask, network range, and format converter for decimal, binary, and hex
Title
Description
MAC Address Generator
Generate and validate MAC addresses
MAC Address Vendor Lookup
Look up the vendor/manufacturer (OUI) of any MAC address from a bundled offline IEEE dataset - unicast/multicast detection, format conversion, and EUI-64 derivation, fully in-browser
DNS Lookup
Perform DNS lookups and view DNS records
HTTP Headers Viewer
View and analyze HTTP headers
IP Range Calculator
Calculate IP ranges and subnet information
Port Scanner
Scan ports to check for open connections
WHOIS Lookup
Lookup domain registration information
SPF Record Builder
Build and validate SPF DNS TXT records
DMARC Record Builder
Build and validate DMARC DNS TXT records
IPv6 Expander
Expand compressed IPv6 addresses to full form and compress them back to canonical notation, with validation and a per-group breakdown.
DKIM Record Generator
Build and validate DKIM DNS TXT records from a public key
CAA Record Generator
Build and validate DNS CAA records (RFC 8659)
BIMI Record Generator
Build a BIMI DNS TXT record (v=BIMI1) from your SVG logo URL and optional Verified Mark Certificate URL, and publish it at default._bimi.yourdomain.com.
MTA-STS Policy Generator
Generate MTA-STS DNS TXT records and HTTPS policy files for STARTTLS enforcement
Why Choose Our Tools
Lightning Fast
All tools run directly in your browser with no server processing required.
Privacy First
Your data never leaves your device. No collection, storage, or tracking.
100% Secure
All tools are secure with enterprise-grade encryption protocols.
Frequently Asked Questions
Are the network tools free?
Yes, all our tools are 100% free with no hidden charges, no registration required, and no usage limits.
Is my data secure and private?
Yes, all tools work entirely in your browser. No data is sent to servers, and we never store any information.
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Last updated: September 18, 2026