Packet Sender
The Free Network Test Utility

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Packet Sender

Packet Sender is an open source utility to allow sending and receiving TCP and UDP packets. It is available for Windows, Mac, Linux, Android, and iOS. It can be used for both commercial and personal use (license). It is free for desktop (no ads / no bundleware) and $0.99 for Android / iOS. It's designed to be very easy to use while still providing enough features for power users to do what they need.

Windows Screenshot

Mac Screenshot

Ubuntu Screenshot

Command Line Screenshot

(Comes with all desktop versions)

Android Screenshot

iOS Screenshot

3 ways to support Packet Sender!


Documentation can be found here.


For Windows XP, Vista, 7, 8, 8.1, 10:

For Mac OS X (Intel 64-bit):

For Linux Desktop (32-bit or 64-bit with Qt 5.4 ):

For Android (4.0 and higher):

For iOS (8.1 and higher):

Previous versions are available.

Change log

  • Version 2015-02-13
    • Packet Sender for Desktop is now open source!
    • New vector-based logo
    • Bug fix in quick-disable/enable
    • Migrated to Qt 5.4
    • Ubuntu version brought up to date.
    • Forums are closed (spammers killed it).
  • Version 2014-10-07
    • Initial launch of forums.
    • Multi-Send.
    • Quick-send from traffic log selected packets.
    • Packet Export/Import.
    • Rolling traffic log support.
    • Numerous configuration settings added:
      • Copy raw packet data to clipboard.
      • Receive before send.
      • Connection delays for slow devices.
    • Command line interface default binds to 0.
    • Universal (XP through 8.1) Windows installer.
    • Migrated to Qt 5.3
    • Some rework of the "About" section.
  • Version 2014-02-22
    • TCP connections are now fully threaded (no more UI freezes).
    • Brand new and highly capable command line interface. (Run PacketSender --help)
    • Some mild UI enhancements to make sending easier.
    • Ubuntu version brought up to date.
    • Windows XP now separated.
    • Qt 5.2
  • Version 1.5 (Mobile)
    • Android version released.
  • Version 2013-11-18
    • Copy to Clipboard button on traffic log.
    • Name prompt for traffic log.
  • Version 2013-11-11
    • Bad installer on Windows. No other changes made.
  • Version 2013-11-09
    • Searching packets from traffic log.
    • Fixed some traffic log stability problems.
  • Version 2013-11-05
    • Added resending packets at user-specified intervals.
    • Traffic log sped up significantly.
    • Packet searching.
    • Table headers (both saved packets and traffic log) can be rearranged.
    • Response packet for TCP actually works now.
    • Response packet data can be manually updated.
    • About / License stuff moved to another tab.
    • Internal libraries updated.
  • Version 2013-10-20
    • 64-bit Ubuntu and Linux Mint support.
  • Version 2013-10-14
    • Ubuntu and Linux Mint support.
  • Version 2013-05-20
    • Saving is less quirky.
    • Domain names can be used in IP address line. Packet Sender will do a quick lookup to find the IP.
    • Internal libraries updated.
  • Version 2012-09-12
    • Public release of deskop version.

Archived Versions