.WDMON File Extension

Wireless Diagnostics Monitor File

Developer Apple
2.0  |  3 Votes

What is a WDMON file?

A WDMON file contains Wi-Fi performance scan results captured by Wireless Diagnostics, an app bundled with macOS used to analyze a user's network performance. It stores information about the connection of a network to the Internet, which includes the data transfer rate and signal quality, over a specified period of time.

More Information

Screenshot of a .wdmon file in Apple Wireless Diagnostics 1
WDMON file open in Apple Wireless Diagnostics 1

Users typically utilize Wireless Diagnostics when they are experiencing difficulties performing Internet-related tasks, such as browsing the web, streaming content, or sending and receiving emails while connected to a Wi-Fi router. After collecting network performance data with Wireless Diagnostics, a user can analyze the data himself or share the results with an IT specialist.

The information stored in a WDMON file is displayed as a graph in Wireless Diagnostics. It includes measurements of the following types of information:

  • Rate - Transmission rate over time in megabits per second (Mbps).
  • Quality - Signal-to-noise ratio over time in decibels (dB), with lower quality numbers resulting in devices disconnecting from the router.
  • Signal - Signal (RSSI) and noise measurements over time, with high signal and low noise measurements indicating optimal performance.

To create a WDMON file with Wireless Diagnostics follow these steps:

  1. Select Window → Performance.
  2. Leave the window open as the program collects data.
  3. Select File → Close.

After closing the window the WDMON file will appear on the desktop.

Common WDMON Filenames

[YYYY.MM.DD_HH-MM-SS-TZA].wdmon - A WDMON file is named according to the time in which it is created. For example, a WDMON file saved at 1:13:43pm on July 10, 2020 in the Central Daylight Time (CDT) zone will be named 2020.07.10_13-13-43-CDT.wdmon.

How to open a WDMON file

You can only open WDMON data files with Apple Wireless Diagnostics in macOS. To open a WDMON file with Wireless Diagnostics, select File → Open. Alternatively, you can also double-click the WDMON file and it will open automatically in Wireless Diagnostics if the file type is associated with the program.

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Programs that open WDMON files


Verified by FileInfo.com

The FileInfo.com team has independently researched the Wireless Diagnostics Monitor file format and Mac apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

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