Sniffnet

Comfortably monitor your network traffic ‍

Free · Open sourceLatest versionWindows

About Sniffnet

Application to comfortably monitor your network traffic. Cross-platform. Intuitive. Reliable.

Translated in: 🇨🇳 🇩🇪 🇫🇷 🇷🇺 🇵🇹 🇪🇦 🇮🇹 🇵🇱 + 18 more languages (opens in a new tab)

_Support Sniffnet's development_

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

If you appreciate Sniffnet, sponsor the project (opens in a new tab) to support its growth (opens in a new tab).

For sponsorship inquiries, feel free to reach out at sponsor@sniffnet.app.

A special shout-out to these awesome organizations and folks who are sponsoring Sniffnet:

Processing over 3TB/s of video at peak load, now hiring in SF

Features

  • choose a network adapter of your PC to inspect
  • select a set of filters to apply to the observed traffic
  • import and export comprehensive capture reports as PCAP files
  • view overall statistics about your Internet traffic
  • view real-time charts about traffic intensity
  • identify connections in your local network
  • discover the geographical location of remote hosts
  • find out domain name and ASN of the hosts you are exchanging traffic with
  • identify 6000+ upper layer services, protocols, trojans, and worms
  • see which programs are generating network bandwidth
  • ⭐ save your favorite network hosts, services, and programs
  • keep an eye on your network even when the application is minimized
  • search and inspect each of your network connections in real time
  • set custom notifications to inform you when defined network events occur
  • import custom IP blacklists to highlight potentially dangerous connections
  • choose the style that fits you the most, including custom themes support
  • ...and more!

User manual

Do you want to learn more? Check out the **Sniffnet Wiki** (opens in a new tab), a comprehensive manual to help you thoroughly master the application from a basic setup to the most advanced functionalities. The Wiki includes step-by-step guides, tips, examples of usage, and answers to frequent questions.

Missing dependencies

Most of the errors that may arise are likely due to your system missing dependencies required to correctly analyze a network adapter. Check the required dependencies page (opens in a new tab) for instructions on how to proceed depending on your operating system.

Description adapted from the project README.

Version
1.5.1
Updated
Jul 22, 2026
Size
20 MB

Open source details

Released
Jul 22, 2026
GitHub stars
41.6K

Community project. Help and bug reports go to the maintainers on GitHub; AppsXi does not provide support for this app.

Support the maintainers

License

Permissive

Apache License 2.0

Use, change and share it freely, including in closed source apps, as long as the copyright notice stays. Includes a patent grant.

Read the full license

How this app was checked

AppsXi checks every version before it is listed.

  • Signed by SignPath Foundation

    Certificate from GlobalSign GCC R45 CodeSigning CA 2020,O=GlobalSign nv-sa,C=BE

  • Signature stays valid after its certificate expires

  • All bundled programs are signed

  • File matches the fingerprint GitHub published

    Show the SHA-256

    54b52b1ce8bfd9e0d6d727da8db988bc6b6a843492c7ce4afc4709e8378eec9a

  • Part of GitHub's immutable release v1.5.1

    GitHub signed that this file belongs to that release of GyulyVGC/sniffnet, so it cannot be swapped later.

  • No malware found

    ClamAV 1.5.4 on Oct 18, 2026

Not included yet: installing and watching the app run in a virtual machine.

What these checks do and don't cover

Versions

1.5.1

Checked Oct 18, 2026 · Windows

MSI · 20 MB, MSI · 20 MB

Checked

Questions about Sniffnet

Is Sniffnet free?

Yes. Sniffnet is free and open source under the Apache License 2.0. AppsXi lists the maintainers' official release and does not charge for it.

Is Sniffnet safe to download?

AppsXi downloads every version of Sniffnet from the maintainers' official GitHub release and checks it before it is listed. For version 1.5.1 (checked Oct 18, 2026), the Windows download is Authenticode signed, each file matches the checksum GitHub publishes for the release, byte for byte and a malware scan found nothing.

Who makes Sniffnet?

Sniffnet is an open source project by Giuliano Bellini on GitHub (GyulyVGC/sniffnet). Help and bug reports go to its maintainers there.

Reviews

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