Click the map to place observer
Waveshed is a free, no-signup tool that maps radio coverage and line-of-sight (viewshed) from any point on Earth, right in your browser. The simulation runs on your GPU through WebGPU, with an automatic CPU fallback.
Line-of-sight (LOS) shows what a single point can see across the terrain. RF propagation goes further and estimates how strong a radio signal stays as it crosses that terrain.
Your results stay private. Coverage is computed on your own device, and the resulting map is never uploaded to a server.
To get started, place a point on the map, choose LOS or RF, set the height and range, then press Run Simulation.
New to coverage mapping? Read the help guides or browse the blog.
Yes. Waveshed is completely free for line-of-sight and RF coverage analysis. There is no paywall on the simulator, no trial limit, and no credit card. You can place a transmitter, run a simulation, and export the result as PNG, GeoTIFF or KMZ at no cost.
No. The simulator runs entirely in your web browser, so there is nothing to download or install and no account to create. Just open the page and start mapping coverage. A modern browser with WebGPU gives the best speed, and a CPU fallback keeps it working without one.
On your own device. Waveshed runs the coverage engine in your browser with WebGPU, so no server computes your coverage and your result map is never uploaded. Waveshed downloads only the public terrain and map tiles needed to draw the area you are viewing. What we process is described in the Privacy Policy.
Use LOS (line-of-sight, also called a viewshed) when you only need to know what is visible from a point, such as for a camera, a watchtower, or microwave optics. Use RF propagation when you need real signal strength over distance, factoring in frequency, power, and terrain loss.