#filter #network #packet #sniffer #gui

app sniffnet

Application to comfortably monitor your network traffic

21 releases (10 stable)

1.2.2 Aug 8, 2023
1.2.1 Jun 8, 2023
1.2.0 May 18, 2023
1.1.2 Mar 19, 2023
0.5.0 Oct 2, 2022

#34 in Network programming

Download history 148/week @ 2023-06-11 111/week @ 2023-06-18 92/week @ 2023-06-25 139/week @ 2023-07-02 187/week @ 2023-07-09 151/week @ 2023-07-16 68/week @ 2023-07-23 109/week @ 2023-07-30 253/week @ 2023-08-06 164/week @ 2023-08-13 82/week @ 2023-08-20 126/week @ 2023-08-27 54/week @ 2023-09-03 60/week @ 2023-09-10 79/week @ 2023-09-17 45/week @ 2023-09-24

258 downloads per month


14K SLoC


Application to comfortably monitor your Internet traffic
Multithreaded, cross-platform, reliable
๐ŸŒ www.sniffnet.net

Graphical interface translated in:
๐Ÿ‡ฌ๐Ÿ‡ง  ๐Ÿ‡ฉ๐Ÿ‡ช  ๐Ÿ‡ฌ๐Ÿ‡ท  ๐Ÿ‡ช๐Ÿ‡ฆ  ๐Ÿ‡ซ๐Ÿ‡ฎ  ๐Ÿ‡ซ๐Ÿ‡ท  ๐Ÿ‡ฎ๐Ÿ‡น  ๐Ÿ‡ฐ๐Ÿ‡ท  ๐Ÿ‡ต๐Ÿ‡ฑ  ๐Ÿ‡ต๐Ÿ‡น  ๐Ÿ‡ท๐Ÿ‡ด  ๐Ÿ‡ท๐Ÿ‡บ  ๐Ÿ‡ธ๐Ÿ‡ช  ๐Ÿ‡น๐Ÿ‡ท  ๐Ÿ‡บ๐Ÿ‡ฆ  ๐Ÿ‡จ๐Ÿ‡ณ

Help fund Sniffnet's development ๐Ÿ’–

Sniffnet is completely free, open-source software which needs lots of effort and time to develop and maintain.

If you appreciate Sniffnet, consider sponsoring: your support will allow me to dedicate more and more time to this project, constantly expanding it including new features and functionalities.

A special mention goes to these awesome organizations and folks who are sponsoring Sniffnet:

GitHub   Cthulu201   Tiansheng Li


You can install Sniffnet in one of the following ways:

from GitHub releasesโ€‚

You can download the latest version of Sniffnet through the installers available below.
Choose from a Windows Installer, an Apple Disk Image, a DEB package, or an RPM package (depending on your operating system).


If you are unsure which package to download, you should probably choose the first from your operating system list.




from Crates.ioโ€‚

Follow this method only if you have Rust installed on your machine.
In this case, the application binary can be built and installed with:

cargo install sniffnet
from Homebrew

You can install Sniffnet Homebrew package with:

brew install sniffnet
on Arch Linux

You can install Sniffnet community package via pacman:

pacman -S sniffnet
on FreeBSD

You can install Sniffnet port with:

pkg install sniffnet
on NetBSD

You can install Sniffnet from the official repositories via pkgin:

pkgin install sniffnet

Required dependencies

Depending on your operating system, you may need to install some dependencies to run Sniffnet:

Windows dependenciesโ€ƒ

In order to correctly build and run Sniffnet on Windows systems you need to:

  • Install Npcap, making sure to check the box Install Npcap in WinPcap API-compatible Mode during the installation.

  • Download the Npcap SDK.

  • Add the SDK's /Lib/x64 (or /Lib) folder to your LIB environment variable.


If you just need to run the app, perform only the first step (second and third steps are required only for the build).

Linux dependenciesโ€ƒ
  • On Debian-based distributions:
    • libpcap-dev
    • libasound2-dev
    • libfontconfig1-dev
  • On RPM-based distributions:
    • libpcap-devel
    • alsa-lib-devel
    • fontconfig-devel


If you just need to run the app, the -dev / -devel part of the dependencies is not needed (it's required only for the build).

Note that if you are not running as root, you need to set capabilities to inspect a network adapter:

sudo setcap cap_net_raw,cap_net_admin=eip <your/Sniffnet/executable/path>

Alternatively you can run the app with sudo privileges:

sudo sniffnet
MacOS dependenciesโ€ƒ

MacOS natively has all the dependencies you need to build and run Sniffnet!
However, remember to run the app with administrator privileges: this is needed to analyse the activity of your network device.


  • ๐Ÿ’ป choose a network adapter of your PC to inspect
  • ๐Ÿท๏ธ select a set of filters to apply to the observed traffic
  • ๐Ÿ“– view overall statistics about your Internet traffic
  • ๐Ÿ“ˆ view real-time charts about traffic intensity (bytes and packets per second, incoming and outgoing)
  • ๐ŸŒ get details about domain names and network providers of the hosts you are exchanging traffic with
  • ๐Ÿ  identify connections in your local network
  • ๐ŸŒ get information about the country of the remote hosts (IP geolocation)
  • โญ save your favorite network hosts
  • ๐Ÿ”‰ set custom notifications to inform you when defined network events occur
  • ๐ŸŽจ choose the style that fits you the most from 4 different available themes
  • ๐Ÿ•ต๏ธ inspect each of your network connections in real time
  • ๐Ÿ“ save complete textual reports with detailed information for each network connection:
    • source and destination IP addresses
    • source and destination ports
    • carried protocols
    • amount of exchanged packets and bytes
    • initial and final timestamp of information exchange
  • ... and more!

IP geolocation and network providers (ASN)

See details

Geolocation and network providers (ASN) refer to the remote IP address of each connection. They are retrieved performing lookups against MMDB files:


The MMDB (MaxMind database) format has been developed especially for IP lookup.
It is optimized to perform lookups on data indexed by IP network ranges quickly and efficiently.
It permits the best performance on IP lookups, and it's suitable for use in a production environment.

This product includes GeoLite2 data created by MaxMind, available from https://www.maxmind.com

This file format potentially allows Sniffnet to execute hundreds of different IP lookups in a matter of a few milliseconds.

Supported application layer protocols

See details

Application layer protocols are inferred from the transport port numbers, following the convention maintained by IANA.

Please, remember that this is just a convention:


The Internet Assigned Numbers Authority (IANA) is responsible for maintaining the official assignments of port numbers for specific uses.
However, many unofficial uses of well-known port numbers occur in practice.

The following table reports the port-to-service mappings used by Sniffnet, chosen from the most common assignments by IANA.

Port number(s) Application protocol Description
20, 21 FTP File Transfer Protocol
22 SSH Secure Shell
23 Telnet Telnet
25 SMTP Simple Mail Transfer Protocol
49 TACACS Terminal Access Controller Access-Control System
53 DNS Domain Name System
67, 68 DHCP Dynamic Host Configuration Protocol
69 TFTP Trivial File Transfer Protocol
80, 8080 HTTP Hypertext Transfer Protocol
109, 110 POP Post Office Protocol
123 NTP Network Time Protocol
137, 138, 139 NetBIOS NetBIOS
143, 220 IMAP Internet Message Access Protocol
161, 162, 199 SNMP Simple Network Management Protocol
179 BGP Border Gateway Protocol
389 LDAP Lightweight Directory Access Protocol
443 HTTPS Hypertext Transfer Protocol over SSL/TLS
636 LDAPS Lightweight Directory Access Protocol over TLS/SSL
989, 990 FTPS File Transfer Protocol over TLS/SSL
993 IMAPS Internet Message Access Protocol over TLS/SSL
995 POP3S Post Office Protocol 3 over TLS/SSL
1900 SSDP Simple Service Discovery Protocol
5222 XMPP Extensible Messaging and Presence Protocol
5353 mDNS Multicast DNS

Keyboard shortcuts

See details

Some keyboard shortcuts are available to improve the efficiency of use and the overall user experience.

If you want to suggest a different key combination for one of the existing shortcuts or if you want to propose a new shortcut, have a look at this issue.

The currently usable hotkeys are reported in the following.


On macOS, use the cmd key instead of ctrl

Event Shortcut keys
Quit the application ctrl+Q
Open full report ctrl+O
Open settings ctrl+,
Clear all notifications ctrl+D
Interrupt the ongoing analysis ctrl+backspace
Start the analysis and confirm modal actions enter
Close settings and modal popups esc
Switch from a tab to the next (or previous) one tab (or shift+tab)
Change inspect connections page to the next (or previous) one ctrl+rightArrow (or ctrl+leftArrow)


See details

Missing dependencies

Most of the errors that can occur are likely due to your system missing required pcap dependencies, necessary to correctly analyze a network adapter.
Check the required dependencies section for instructions on how to proceed, depending on your operating system.

Rendering problems

In some circumstances, especially if you are running on an old architecture or your graphical drivers are not up-to-date, the wgpu default renderer used by iced may cause problems (some icons are completely black, or the interface may glitch).
In these cases, you can try building the application from the tiny-skia-renderer branch, which is based on tiny-skia, a CPU-only software renderer that should work properly on every environment (remember to build it in release mode, since it's less performant than wgpu).
If you are unable to build it yourself, contact me, and I'll provide you a copy.

In any case don't hesitate to open an issue, and I will do my best to help you!


  • A big shout-out to all the contributors of Sniffnet!

  • The graphical user interface has been realized with iced, a cross-platform GUI library for Rust focused on simplicity and type-safety

  • Last but not least, thanks to every single stargazer: all forms of support made it possible to keep improving Sniffnet!


~1.5M SLoC