How to Create a WiFi Heatmap

This guide is here to answer one search intent well. The main WiFi Heatmapper page is still the best place to see the whole product and start the real workflow.

A simple way to create a WiFi heatmap in your browser.

You do not need a heavy enterprise survey tool to make a useful WiFi signal strength heatmap. For homes and small offices, you can upload a floor plan, add measured readings, and visualize coverage directly in the browser.

Start on the main page Try the workflow See Free vs Pro

Basic heatmap workflow

  1. Upload a floor plan image or sketch a simple layout.
  2. Calibrate a known wall distance so spacing is meaningful.
  3. Add WiFi signal readings across the rooms you care about.
  4. Review the heatmap, coverage guide, and marker locations.
  5. Export a PNG to document the results.

WiFi Heatmapper is especially useful when you want an online WiFi heatmap tool that works quickly and keeps the project local to your browser.