Free tools
Free tools to plan your system.
Size cameras and storage, budget PoE power, estimate Wi-Fi coverage, and crunch subnets — accurate, instant, and free. Built by the crew that installs them.
Internet Speed Test
Measure your real download, upload, ping, and jitter live — no app. Moves actual data to time your line.
Open tool Live · Techs & ownersIP Address Lookup
See your public IP, ISP, and location instantly — and look up any IP or domain (geolocation, ASN, reverse DNS).
Open tool Live · Techs & ITDNS Lookup
Check any domain's live DNS records — A, AAAA, MX, TXT, NS, CNAME, SOA — resolved in real time.
Open tool Live · Techs & ownersSSL & Security Checker
Check any site's live TLS certificate (issuer, expiry) and security-header grade in seconds.
Open tool Live · Techs & engineersOpen Port Checker
See whether a TCP port is open and answering on a public host — sites, camera streams, remote access.
Open tool Live · EveryoneConnection Quality Test
Measure your real latency, jitter, and packet loss — catch a flaky Wi-Fi or overloaded line.
Open tool Live · TechsMAC Address Lookup
Identify any device's manufacturer from its MAC address (OUI) — cameras, access points, and more.
Open tool Live · Techs & ownersWhois Domain Lookup
Registrar, registration and expiry dates, nameservers, and status for any domain — live RDAP/whois.
Open tool Live · Owners & ITEmail Deliverability Checker
Check MX, SPF, and DMARC — the DNS records that decide if your email lands and whether it can be spoofed.
Open tool Live · Techs & ITDNS Propagation Checker
Compare Google, Cloudflare, and Quad9 to see whether a DNS change has gone live worldwide.
Open tool Live · Techs & engineersHTTP Header Viewer
See any URL's raw response headers, redirect chain, and time-to-first-byte.
Open tool Cameras · Owners & installersCamera Storage Calculator
Size your NVR/DVR — how many terabytes you need for your cameras, resolution, frame rate, and retention.
Open tool Networking · Network engineersPoE Power Budget
Add up your PoE cameras, access points, and phones and get the switch power budget you need — with headroom.
Open tool Wi-Fi · Owners & ITWi-Fi Access Point Estimator
Estimate how many access points cover your square footage and device count for a solid connection everywhere.
Open tool Networking · Network engineersIP Subnet Calculator
CIDR in, everything out: network, broadcast, host range, usable hosts, subnet mask, and wildcard.
Open tool Networking · Network engineersSubnet Splitter (VLSM)
Split a network into equal subnets — each subnet's range and usable host count.
Open tool Networking · Owners & ITInternet Speed Calculator
How much internet speed do you need? Add your streams, calls, cameras, and devices for a down/up target.
Open tool AV · EveryoneTV Size Calculator
Find the ideal TV size for your viewing distance — 4K or 1080p, with a comfortable range.
Open toolRather have us plan it?
Book a free on-site design review and we’ll size the whole system for you — no obligation.