LanFi

LanFi is a free and open source tool for analyzing Wi-Fi networks on macOS. It allows you to assess connection quality, find congested channels, and identify potential network security issues.

Analyzing and Diagnosing Wireless Networks on Mac with LanFi

The program scans available wireless networks and displays detailed information about each one, including signal strength, frequency, the channel in use, and the security type. Based on the data collected, LanFi calculates a connection quality score on a scale from 0 to 100 and recommends the most suitable channels in the 2.4, 5, and 7 GHz bands. This helps identify sources of interference and select the optimal router settings.

In addition to analyzing radio signals, the app offers tools for diagnosing local network and Internet connections. You can use these tools to check gateway availability, DNS functionality, connection latency, and other parameters. Scan results are presented in tables and graphs, and the collected data can be saved for later review.

Key features of LanFi:

• scanning for available Wi-Fi networks;
• rating connection quality on a scale from 0 to 100;
• analyzing channel congestion and interference levels;
• selecting the best Wi-Fi channels;
• checking wireless network security;
• monitoring network status in real time;
• exporting analysis results to CSV and JSON;
• no registration, analytics collection, or telemetry.

You can download LanFi for macOS for free from our website.