NetTools: Network Analyzer

Every network tool you actually need, in one app. NetTools reads your connection, maps your Wi-Fi, finds every device on the LAN, measures your real internet speed, and runs ping, traceroute, DNS and WHOIS — with no account, no sign-up, and no data leaving your phone.

📡 NETWORK INFO

See what you are actually connected to: IPv4 and IPv6 address, gateway, subnet, DNS servers, MTU, interface, ISP and public IP. On mobile data it adds RSRP, RSRQ, SINR, Cell ID, TAC, PCI and MCC-MNC. VPN connections are shown as VPN, not hidden behind the tunnel.

📶 WI-FI ANALYZER

• Live signal strength in dBm, updated about once a second, with a plain-language rating

• Channel chart for 2.4 GHz, 5 GHz and 6 GHz — see which channel your neighbours are sitting on before you pick one

• Channel width up to 320 MHz (Wi-Fi 7), band, BSSID, link speed and security

• Home-screen widget and a Quick Settings tile for signal at a glance

Nearby-network scanning is rate-limited by Android itself, so NetTools shows a real cooldown timer instead of pretending to refresh continuously.

🔍 LAN SCAN — WHO IS ON MY NETWORK

Sweep the whole subnet and get a list of every host that answers, with hostname, IP, response time and open ports. mDNS, SSDP and ONVIF discovery run alongside the sweep, so devices that announce themselves are named properly. Scans keep running in the background as a foreground service, and finished scans can be saved per site and exported.

🎥 FIND CAMERAS AND OTHER HEADLESS DEVICES

A camera, an NVR or a printer has no screen to tell you its address — it is the device you most often have to find on a network you did not build. NetTools probes RTSP (554) during the LAN sweep and has a camera port set covering the ports the major brands ship with. ONVIF WS-Discovery goes further: a camera reports its own manufacturer, model and location, so that label is fact rather than a guess.

⚡ INTERNET SPEED TEST

Download, upload, latency, jitter and packet loss, measured over Cloudflare's anycast network with multiple parallel streams. The result is total bytes over total time — the honest figure — with a live chart while it runs. Every completed test is saved with the network that produced it, because a speed with no context cannot be read later.

🛠 PING, TRACEROUTE, DNS, WHOIS, PORT SCAN

• Ping with min/avg/max RTT and true packet loss

• Traceroute, hop by hop, with real round-trip times and a WHOIS lookup on any hop you tap

• DNS lookup for A, AAAA, MX, TXT, NS, CNAME and more, against any server you name — ask your router and 8.8.8.8 the same question and compare

• WHOIS that follows the registry referral chain instead of stopping at the stub answer

• Port scanner with common, camera and custom port sets

📁 HISTORY AND EXPORT

Save a scan under a site name and it stays. Export any scan or speed test as CSV or JSON — UTF-8, opens straight into Excel or Google Sheets with accented site names intact.

🌍 10 LANGUAGES

English, Tiếng Việt, Bahasa Indonesia, Bahasa Melayu, ไทย, Filipino, हिन्दी, 한국어, 简体中文, 繁體中文.

WHAT NETTOOLS WILL NOT DO

It will not invent a reading. Android blocks apps from reading another device's MAC address, so vendor lookup is best-effort and is never presented as certain. An open port tells you what is listening, not what brand the device is, and the app says so on the screen. Where the platform limits what is knowable, NetTools tells you — that is more useful on site than a confident wrong answer.

PERMISSIONS

Location (or Nearby Wi-Fi devices on Android 13+) is required by Android for any app that reads Wi-Fi names and scan results. NetTools does not collect your location, and nothing it measures is uploaded anywhere.

Free, with a one-time in-app purchase to remove ads. No subscription, no account, no tracking.