NetGraph

What it is

NetGraph is a professional Wi-Fi site survey and heatmap app for network engineers, IT teams, installers, and low-voltage integrators. Floor plans, field measurements, and multi-metric heatmaps make wireless coverage and real-world experience visible — surfacing weak coverage, channel interference, roaming issues, latency, and packet loss — and turn them into client-ready image or PDF reports.

Who it’s for

• IT ops and network engineers delivering coverage survey reports
• Installers and low-voltage integrators doing Wi-Fi acceptance testing
• Anyone running multi-AP networks: offices, hotels, schools, malls, warehouses

Key features

• Projects & floor plans: organize by customer, project, and floor; import plans and calibrate scale; place routers, APs, and controllers on the plan
• Field surveying: direct and planned sampling, with photos, notes, and resample flags per point — data linked to plan positions
• Wi-Fi analysis: Mac offers the fullest scanning — signal, SNR, noise, channels, bands, BSSID, neighboring APs, and interference; iPhone / iPad read enhanced metrics via Shortcuts for mobile sampling
• Network experience tests: public/LAN latency, packet loss, upload/download throughput — pinpoint whether the problem is coverage, LAN, or egress
• Roaming tests: watch devices move between APs, log switches, latency, loss, and events, and export PDF
• Multi-metric heatmaps: signal, SNR, noise, link rate, throughput, latency, loss — multi-pane comparison and custom color schemes
• Exports: PNG heatmaps and multi-page PDFs covering multiple floors and metrics
• Three platforms: Mac, iPhone, and iPad with layouts tuned per device

Why I built it

Professional surveying tools usually lean on the cloud — yet survey data is exactly the data that should stay on site. NetGraph’s answer is direct: fully offline, zero data collection. The report belongs to you, and so does the data.