WiFi Signal Analyzer

Wi-Fi Signal Analyzer is a Linux desktop tool that shows nearby wireless networks and the live signal of your own adapters. A lightweight Linux alternative to WifiInfoView for Wi-Fi scanning, channel and signal analysis.

It reads real data only: /sys/class/net (every interface, driver, MAC, state, link speed, byte counters), /proc/net/wireless (link quality, signal level and noise in dBm) and, when the system allows it inside the sandbox, NetworkManager (nmcli) or iw for the scan list of SSID, BSSID, channel, frequency, band, signal and security.

Key Features:
- Adapters & Link tab: all network interfaces with type, state, driver, speed, link quality, signal and noise.
- Nearby Networks tab: scan list with channel/band columns, per-channel occupancy bar chart and CSV export.
- Live Signal & Traffic tab: real-time charts of signal level (dBm) and per-interface throughput (KB/s).
- If the machine has no Wi-Fi adapter, or scanning is not permitted by the sandbox, the app says so honestly instead of showing fake networks.
- Bilingual donate banner (Vietnamese / English).

Disclaimer: This project is an independent open-source tool and is not affiliated with, sponsored by, or endorsed by NirSoft.