Network Tools

Network tools and resources illustrated

Browser-based network engineering tools. Nothing is sent to a server — all processing runs locally or calls public APIs directly from your browser.

IP Tools
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Network
What Is My IP?

Your IPv4 and IPv6 addresses, ISP, ASN, location, and reverse DNS.
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Threat Intel
IP / Domain Reputation

WHOIS, open ports, CVEs, ISP data, and external threat intel links for any IP or domain.
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BGP / Routing
BGP / ASN Lookup

Look up any ASN or IP prefix — announced routes, upstream peers, and WHOIS data.
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Regex
Regex Tester

Test regular expressions live with match highlighting. BGP community filtering, AS path matching, and JunOS policy examples built in.
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DNS
DNS Lookup

Query A, AAAA, MX, NS, TXT, CNAME, SOA, PTR, CAA and SRV records via Cloudflare DoH.
Subnet & Address Tools
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IPv4
IPv4 Visual Subnet Calculator

Interactive subnet calculator with divide and join — split any network visually.
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IPv6
IPv6 Subnet Calculator

Calculate IPv6 network address, range, prefix length, and total host count.
Password Tools
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Cisco IOS
Type 7 Password Decrypter

Decrypt Cisco IOS Type 7 (reversible XOR) password strings from your running config.
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Juniper JunOS
JunOS $9$ Password Decrypter

Decrypt Juniper JunOS $9$ encrypted passwords from your device configuration.
▮ AUTOMATION TOOLS
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Jinja2
Jinja2 Template Tester

Test Jinja2 templates live in your browser. Loops, conditionals, filters, macros. Ansible & Nornir examples built in. Powered by Nunjucks — no server needed.