ProbeKit: The Android Network Scanner Every Sysadmin Needs

Whether you're a network engineer troubleshooting a client site, a homelab enthusiast checking what's on your subnet, or a sysadmin doing a quick audit away from your desk — your phone is the most available tool you have. ProbeKit turns that phone into a serious network scanner.

What Is ProbeKit?

ProbeKit is a free Android app that packages the most essential network scanning and lookup tools into a clean, fast interface. Port scanning, device discovery, ping, RDAP/Whois lookups, and scan history — all in one place, no root required.

It's built for people who actually use these tools, not just curious users who want to see "what's on my network" once and forget it. ProbeKit is designed to be your go-to field tool.

Port Scanning That Actually Works on Mobile

Running a meaningful port scan from a phone has historically been painful. ProbeKit changes that with a fast, configurable scanner that lets you:

• Scan single hosts or IP ranges
• Target common ports or define your own range
• See open/closed/filtered status clearly
• Save scan results to your history for later reference

When you're on-site and need to confirm that port 443 is actually open on a server before calling it a network issue, ProbeKit gives you that answer in seconds.

Device Discovery on Your Local Network

ProbeKit can sweep your local subnet and list active devices with their IP addresses, hostnames where resolvable, and response times. This is invaluable when you're standing in a server room or a client's office and need a quick inventory of what's reachable.

Combine it with the ping tool for continuous monitoring of a specific host — great for checking network stability during maintenance windows.

RDAP and Whois Lookups Built In

Need to know who owns an IP block or domain? ProbeKit includes RDAP and Whois lookup tools so you can query registration data, abuse contacts, and network ownership without leaving the app. Handy when you're investigating suspicious traffic or just need to identify an unknown IP in your logs.

All lookup history is saved so you can revisit past queries — useful for building a picture of recurring IPs across multiple investigations.

Built for Real-World Use

ProbeKit is free, requires no account, and works entirely on your local network without any cloud relay. Your scan data stays on your device. Search for ProbeKit on Google Play and add it to your sysadmin toolkit today.