Network Tools
Free networking tools for diagnosing, testing, and configuring your network.
These are free, browser-based tools that run entirely in your browser -- no software to install, no data sent to third-party servers. Use them to diagnose network issues, verify your configuration, or plan network changes.
The most commonly needed tools: What is My IP shows your public IP address as the internet sees it -- useful when setting up remote access or verifying your VPN is working. Speed Test measures your actual download and upload speeds against what your ISP promises. Subnet Calculator helps with network planning if you're segmenting your home network or setting up VLANs.
Other tools serve more specific needs. The port checker verifies whether port forwarding is configured correctly. The Wi-Fi QR code generator creates a scannable code so guests can join your network without typing the password. The DNS lookup tool helps diagnose resolution failures when websites won't load.
What Is My IP
Detect your public IP address, location, ISP, and whether you're using a VPN.
What Is My Local IP
Find your private/local IP address on your current network.
Internet Speed Test
Measure your download speed, upload speed, and ping latency.
Ping Test
Test the latency and reachability of any host or IP address.
Port Checker
Check whether a specific port is open or closed on your network.
Subnet Calculator
Calculate subnet ranges, CIDR notation, usable hosts, and wildcard masks.
WiFi QR Code Generator
Generate a scannable QR code to share your WiFi password instantly.
What Is My ISP
Identify your Internet Service Provider and connection details.
What Is My User Agent
View your browser's user agent string with parsed OS and browser details.
DNS Lookup
Query DNS records (A, AAAA, MX, CNAME, TXT, NS) for any domain.
Traceroute
Trace the network path from our server to any destination host.
MAC Address Lookup
Identify the manufacturer of a device from its MAC address.
Password Generator
Generate strong, random passwords for your router and WiFi network.