iperf3 measures TCP, UDP, and SCTP network bandwidth through active tests of achievable throughput.
Bandwhich
bandwhich displays current network bandwidth use by process, connection, and remote IP address or hostname in a terminal.
About Bandwhich
Bandwhich is a command-line tool that shows current network bandwidth use by process, connection, and remote IP address or hostname.
It sniffs a network interface and records IP packet size, matching traffic to processes using the /proc filesystem on Linux, lsof on macOS, or WinApi on Windows. It attempts reverse DNS lookup in the background on a best-effort basis and displays less information when the terminal window is small. The project is in passive maintenance and requires elevated privileges to capture packets.
Key features
- Shows bandwidth use by process, connection, and remote IP/hostname
- Sniffs network interface and records IP packet size
- Resolves IPs to hostnames in background via reverse DNS
- Adjusts displayed information to terminal window size
- Offers prebuilt binaries for Linux, macOS, Windows, and Android
- Supports building from source using Cargo
Best for: Terminal users who need to check which processes and connections use network bandwidth.
Good for
- Shows breakdown by process, connection, and remote IP or hostname
- Available for Linux, macOS, Windows, and Android
- Open source with source build instructions
Watch out for
- In passive maintenance with no new features being worked on
- Requires elevated privileges to sniff network packets
- Android support is best effort and binary is not an APK for general usage
Bandwhich at a glance
- Website
- github.com/imsnif/bandwhich
- Category
- Software & Utilities › Linux Apps
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Platforms
- Android, Linux, macOS, Windows
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Bandwhich FAQ
How does bandwhich work?
It sniffs a network interface and records IP packet size, cross-referencing it with the /proc filesystem on Linux, lsof on macOS, or WinApi on Windows.
Does bandwhich require elevated privileges?
Yes, because it sniffs network packets. On Linux it can use Linux capabilities via setcap or be run with sudo.
Is bandwhich actively developed?
No. It is in passive maintenance where critical issues will be addressed but no new features are being worked on.
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