GreyRecon

GreyRecon is a network recon & security toolkit for auditing the WiFi network you're already on -- built for people who actually want to see what's happening on their own network, not just a device count.

WHAT IT DOES

- Multi-method discovery: native ARP/NDP, mDNS, UPnP, and active TCP-probe scanning, merged into one real device list, not a slow ping sweep.

- Device classification: routers, cameras, printers, game consoles, and smart-home gear identified automatically from mDNS signatures, open ports, and vendor data.

- Device History: track devices over time, name them yourself, get alerted when something new joins your network, and see IP-change history.

- Security tools: TLS/cipher analysis, security-header checks, common exposure and debug-panel detection, default-credential testing, SNMP community-string checks, and NVD/EPSS-prioritized CVE lookups.

- Recon tools: subnet calculator, DNS lookup, WHOIS/RDAP lookup, Certificate Transparency log monitoring, typosquat/homograph domain checking, and BLE scanning.

- A real terminal: a genuine interactive shell with real Unix tooling, plus an original package manager for installing more CLI tools.

FREE, NO ADS, NO ACCOUNT

Scanning your network is free, forever -- no account, no ads, no forced subscription. GreyRecon Pro is a one-time unlock for Device History, the Tools suite, the Terminal, and an MCP server that lets your own AI agent query your scan data conversationally.

BRING YOUR OWN KEY

Shodan and AI-provider (DeepSeek/Anthropic) integrations use your own API keys, entered and encrypted on your device. There's no GreyRecon backend between you and any of these services -- your keys and your data go straight to the provider you chose, using your own account.

PRIVACY

Scan results, device history, and everything else GreyRecon discovers stays on your device. See the full privacy policy for exactly what leaves your device and when.

GreyRecon is built by a solo developer. Feedback and bug reports are genuinely read.