Free · Browser-based · No signup

Every IP & Network Tool
You'll Ever Need

Look up any IP address, calculate subnets, check open ports, test VPN leaks, trace routes, and validate DNS — all in one place. 40+ tools, all free, all running in your browser. Your data never leaves your device.

What Is My IP? Lookup Any IP Subnet Calculator
40+
Free tools
0
Signups required
100%
Browser-based
IPv4+6
Both supported
Quick IP Lookup — enter any IP or leave blank for yours
Your IP Address
Detecting…
Full details VPN test
What Is My IPSubnet CalculatorPort CheckerVPN Leak TestDNS LookupBlacklist CheckWHOIS LookupTracerouteIP LookupPing Test

🔍 IP Lookup & Location

Find ISP, location, and full details for any IP address

Popular
What Is My IP
Your public IPv4 and IPv6 address
Popular
IP Address Lookup
Location, ISP and organisation for any IP
New
IP to ISP Lookup
ISP, ASN and network owner for any IP
IP Location Finder
Country, city, lat/lon from any IP
Bulk IP Lookup
Look up 20 IPs at once — CSV export
Reverse IP Lookup
Find all domains hosted on an IP
WHOIS Lookup
Full domain and IP registration data
Reverse DNS Lookup
IP to hostname PTR record lookup
Bulk Reverse DNS
PTR lookup for up to 20 IPs at once

🧮 Subnet & IP Calculators

Subnet, CIDR, IP ranges — all offline, never sends your IPs anywhere

Popular
Subnet Calculator
Network, broadcast, host count from any CIDR
CIDR Calculator
CIDR to range and range to CIDR
IPv6 Subnet Calc
128-bit subnets with hex visualiser
IP Range Calculator
Start/end IP range from CIDR
IP Block Size Calc
Hosts per CIDR block size
Broadcast Address
Broadcast address from any subnet
Network Address
Network address from host IP + mask
Wildcard Mask Calc
Wildcard mask ↔ subnet mask ↔ CIDR
IP Class Finder
Classifies A/B/C/D/E and private

🛜 Network Testing Tools

Test connectivity, latency, ports, and server responses

Popular
Port Checker
Check if any TCP port is open
TCP Port Test
Open/closed/filtered with bulk scanner
UDP Port Test
DNS, NTP, QUIC, VPN and VoIP tests
Ping Test
ICMP ping with live chart and stats
Traceroute Online
Hop-by-hop path to any host
Latency Test
Real-time latency meter and chart
HTTP Response Test
GET/POST/HEAD — full response headers
HTTP Headers
Inspect all response headers
Website Reachability
Check if a site is up globally
SSL via IP Checker
TLS certificate validity and details
URL Redirect Checker
Trace every redirect hop
Email Server IP Test
MX, SPF, DMARC, DKIM, blacklist

🔒 Privacy & Security Tools

Check VPN leaks, DNS leaks, and blacklist status

Popular
VPN Leak Check
7 VPN leak types auto-detected
DNS Leak Test
Find DNS resolver leaks
WebRTC Leak Test
Browser WebRTC IP exposure
IP Blacklist Check
Check 20 DNSBLs at once
DNS Lookup
All record types, parallel queries
Private/Public IP
RFC 1918, CGNAT, loopback detection
New
IPv6 Compat. Test
IPv6 readiness score + DNS64/NAT64

🔄 Converters & Utilities

IP format conversion, generation, and validation

IP Format Converter
Decimal ↔ hex ↔ binary ↔ IPv6
IPv4 → IPv6
Mapped, 6to4, NAT64, Teredo
IPv6 → IPv4
Extract IPv4 from ::ffff:, 6to4
IP Range Generator
All IPs in a subnet or range
Random IP Generator
Up to 10,000 random IPs
Popular
IP List Validator
Validate up to 10,000 IPs at once

Why Developers & Sysadmins Choose IP Tracker Tools

100% Browser-based
Subnet calculators, IP validators, and converters run locally. Your private IP ranges never leave your device.
No Signup Required
Every tool is completely free with no account, no email, and no rate limits for basic use.
IPv4 + IPv6 Support
All tools handle both IPv4 and IPv6 including CIDR notation, BigInt 128-bit IPv6 arithmetic, and dual-stack detection.
India-Aware
Jio CGNAT (100.64.0.0/10), Airtel and BSNL ASNs, CERT-In compliance references, and Indian DNS resolvers all recognised.
Mobile Friendly
Fully responsive — works equally well on Jio 4G phones, tablets, and desktop workstations.
CLI Commands Included
Every tool includes the equivalent terminal command — nmap, dig, curl, ping, traceroute — so you learn while you use.

Free IP Address Tools for Developers, Sysadmins & Network Engineers

IP Tracker Tools is a comprehensive collection of free networking utilities covering every task in the IP address and network management workflow — from looking up who owns a specific IP to calculating subnet boundaries, checking whether a firewall port is open, or testing whether your VPN is leaking your real identity.

Built with Indian Networks in Mind

All tools correctly handle Jio's IPv6-only 4G/5G network (CGNAT 100.64.0.0/10, DNS64/NAT64), Airtel and BSNL address ranges (APNIC-registered), and the real-world networking challenges unique to Indian connectivity. The subnet calculator is completely offline — it never sends your internal IP ranges to any server.

IP Lookup Tools

The What Is My IP tool auto-detects both your IPv4 and IPv6 addresses. The IP Address Lookup shows country, city, ISP, ASN, and coordinates for any IP. The IP to ISP Lookup focuses on the network operator. For batch work, Bulk IP Lookup handles 20 IPs with CSV export.

Subnet and CIDR Calculators

The Subnet Calculator computes network address, broadcast, usable host range, and host count from any CIDR — all locally in your browser. The CIDR Calculator works in both directions. The IPv6 Subnet Calculator uses JavaScript BigInt for 128-bit arithmetic.

Network Testing and Diagnostics

The Port Checker and TCP Port Test check open ports from the internet. The HTTP Response Test sends any HTTP method to any URL and shows the complete response with a security header audit.

Privacy and Security Verification

The VPN Leak Check auto-detects seven types of VPN leaks. The IP Blacklist Check queries 20 major DNSBLs. The IPv6 Compatibility Test gives a readiness score for dual-stack and DNS64/NAT64.

Frequently Asked Questions

Are all tools completely free?
Yes — every tool on IP Tracker Tools is free with no registration, no email, and no payment required. Calculators and validators are supported by unobtrusive Google AdSense ads.
Do my IP lookups get logged?
Subnet calculators, IP validators, and format converters run entirely in your browser — no data is sent anywhere. Tools that require live lookups (WHOIS, IP location, port checker) send the queried IP to the relevant APIs, not to us.
What is my IP address right now?
Your IP address is shown at the top of this page. For full details including ISP, location, and IPv6 status, visit the What Is My IP page.
Why does my subnet calculator need to be private?
Enterprise and government networks often have sensitive internal IP schemes. Our subnet calculator is fully browser-based — it never sends your internal IP ranges, CIDR blocks, or network plans to any server.
I'm on Jio — why do I have a 100.64.x.x IP?
Jio 4G/5G uses Carrier-Grade NAT (CGNAT). The 100.64.0.0/10 range (RFC 6598) is shared among thousands of Jio users. You also have a real IPv6 address — Jio's network is IPv6-native with DNS64/NAT64 for backward compatibility.
Which tool should I use to report spam or abuse?
Use the IP to ISP Lookup to find the abuse contact for any IP, then Blacklist Check to see if the IP is already listed on major DNSBLs.