Signal Plan · Wi-Fi heatmap tool

Free Wi-Fi heatmap planner for AP placement and signal coverage.

Upload an office floor plan, calibrate its scale, pick your access point brand and model (or let the tool recommend them), and calculate proposed AP locations with a signal-strength forecast.

Planning inputs

Complete the sections below, then calculate the design.

1 Floor plan

Upload office layout Supported formats: PNG, JPG, and WebP. Files never leave your browser.

Scale method

Floor width

Floor length

Known dimension length Enter the printed dimension and mark both endpoints.

Measurement unit

Current size: 60.0 × 40.0 meters.

2 RF requirements

Primary design band

Minimum RSSI

Office environment

Mounting height

Concurrent clients

Target Mbps per client

3 AP inventory

Recommend AP models and quantity The tool estimates a model and AP count based on coverage and capacity.

Use my AP model mix Select a brand, a model and a quantity for each line.

Choose your AP brand

We recommend the model and quantity from this brand using your floor size, walls and obstructions, band, minimum RSSI, environment, clients and Mbps.

AP brand

Your AP brand and model mix

Choose each model, enter the amount available, and adjust its planning EIRP only when required.

Total inventory: 0 APs

4 Walls and obstructions

Obstruction type

Select Draw walls, then click the start and end of each wall. Near-square walls snap straight; hold Shift to force it. Click a type below to switch.

5 Forecast

Show signal-strength forecast

Show AP model and channel labels

Outline the minimum-RSSI coverage boundary

Grey out areas below the minimum RSSI

Heatmap layer

Opacity

Colour palette

Upload a floor plan before calculating.

Floor-plan forecast

Upload a floor plan to begin.

Upload an office floor plan

The uploaded image will appear here. After calibration, the AP recommendations and signal forecast will be drawn over it.

Estimated signal strength (RSSI, dBm)

Outline = your minimum RSSI

Recommendation summary

No design has been calculated.

— Target coverage Sampled area meeting RSSI target

— AP quantity Total proposed access points

— Model mix Distinct AP models

— Clients per AP Average concurrent distribution

— Average RSSI Average strongest signal

Proposed AP locations

Coordinates are measured from the top-left of the floor plan.

AP	Model	X position	Y position	Channel	EIRP
No recommendations available.

Wi-Fi heatmap planning FAQ

How many access points do I need?

It depends on coverage (walls, materials, target RSSI) and capacity (clients and throughput). Enter both, then compare the forecast with an on-site survey.

What RSSI should I design for?

Around -65 dBm suits voice and video; -67 dBm is a common enterprise data target; -70 dBm is basic coverage.

Planning method

Preliminary predictive wireless design

The tool uses floor scale, AP planning profiles, distance-based signal loss, selected wall attenuation, client demand, and target RSSI to create a preliminary placement forecast.

Mixed AP inventory

Place models from any supported brand together while maintaining the exact quantity entered for each model.

Flexible scale calibration

Enter the overall floor dimensions, mark a printed drawing dimension, or estimate scale from a standard office-chair width.

Editable recommendations

Move recommended APs, add wall attenuation, inspect predicted RSSI, and export the map and AP-location list.

This is a preliminary browser-based forecast. Validate current AP specifications, regulatory domain, antenna behavior, channel width, mounting constraints, PoE, cabling, roaming, and measured RF conditions before deployment.

Free Wi-Fi heatmap planner for AP placement and signal coverage.

Floor-plan forecast

Recommendation summary

Proposed AP locations

Recommended hardware

Go Pro

Sponsor this tool

Support this tool

Wi-Fi heatmap planning FAQ

Preliminary predictive wireless design

Mixed AP inventory

Flexible scale calibration

Editable recommendations